Bluetooth LiFePO4 Battery


Bluetooth LiFePO4 Battery

What is Bluetooth for LiFePO4 Battery?

Bluetooth technology has revolutionized how we live and work, providing a wireless way to connect devices and share information. Scientists are using a similar approach to generate lithium-ion batteries more efficient and long-lasting.

The Bluetooth LiFePO4 Battery utilizes a Bluetooth-enabled chip to communicate with the battery management system (BMS), allowing for real-time voltage, current, and temperature monitoring. This data may be utilized to optimize battery performance and maximize its lifespan. In addition, the Bluetooth LiFePO4 Battery can be charged wirelessly, making it even more convenient to use.

Whether you’re powering a smartphone or a car, the Bluetooth LiFePO4 Battery will make your life easier.

What is Green ONE Power Tech Bluetooth LiFePO4 Battery

The Green ONE Power Tech Bluetooth lithium battery is designed with Lithium Iron Phosphate technology. This makes it a drop-in replacement for sealed lead-acid batteries in various BCI standard sizes.

The built-in Battery Management System (BMS) protects the battery against extreme temperatures (hot and cold), over-discharge, over-recharge and short-circuits.

The Smartphone or tablet App allows the user to monitor the battery voltage, current, temperature and cycle count in real-time. The App wApp also sends alerts to the user in case of a system error or malfunction.

The Green ONE Power Tech Bluetooth lithium battery is an ideal solution for those who need a reliable, long-lasting power source that is easy to monitor and maintain.


The lithium Bluetooth app is an exclusive addition that allows you to check the status of your battery with a glance at your smartphone or tablet. This feature is just one of the many cutting-edge upgrades that differentiate LiFePO4 batteries from the rest.

Lithium iron phosphate batteries are less prone to overheat, catch fire, or explode than other battery types, making them a safer alternative for electronic products. They also boast a longer lifespan and higher energy density than other battery types, making them a more efficient and cost-effective option in the long run. If you’re looking for a battery that can offer peace of mind and superior performance, LiFePO4 is the way to go.


After you launch the BT app on your smartphone or tablet, the first step is to let it scan for nearby Bluetooth Lithium batteries within 5 meters or 16 feet. Depending on your Bluetooth batteries, the app will show them all on this screen.

The BT app scans for these Bluetooth devices and pairs with them. This is the same that other wireless headphones and earbuds use to connect to your phone.

Once the app has found your battery, it will show up on this screen with the icon next to it.

You can tap on the icon to select it and begin using it with the app. In the app, you have multiple batteries, and you can tap on the icon next to each one to select which one you want to use. The app then connects to that specific battery and displays its current charge level and estimated run time based on its current usage.

You can also see how many days are left until the battery needs to be recharged, and you can tap on the icon to see a more detailed breakdown of its estimated run time. The app wApp also shows you the current temperature of the battery and any warnings or alerts that may be associated with it. You can tap on any warning icons to get more information about what they mean and what you can do about them.

In general, though, the BT app provides a simple and easy way to check on the status of your Bluetooth Lithium battery and manage its settings and usage.


After you select the LiFePO4 battery, you want to monitor, which is the corresponding screen. On it, you can view and monitor:

  • State of charge

The state of charge, or SOC, measures how much power remains in a battery. It is expressed as a percentage, with 100% being a fully charged battery. In the screenshot, the SOC is showing 47%, which means that 47% of the battery’s full power is remaining. The SOC is an important number to keep track of, as it can help to avoid the battery damage and prolong its lifespan. When the SOC gets too low, it can cause the battery to lose capacity and eventually fail. Conversely, when the SOC gets too high, it can lead to overcharging and reduced performance. Therefore, it is important to check the SOC regularly and charge the battery accordingly.

  • Battery’s health

To maintain a healthy battery, it is important to understand the condition of your battery. The Battery’s Health app will help you do just that. By monitoring the performance of your battery over time, the app wApp can provide you with valuable insights into its health. This information will become increasingly important as your battery starts to age. With the Battery’s Health app, you’ll be able to keep track of your battery’s performance and ensure that it remains its top condition for years to come.

  • Status

Status is indicated by what the battery does, whether it is charging, discharging, or in standby mode. The status of a battery can be affected by many factors, including temperature, age, and usage. For example, a battery frequently used in high temperatures may degrade more quickly than one used in cooler temperatures. Conversely, a new battery may have a higher capacity than an older battery. Therefore, it is important to keep track of the status of your batteries to ensure that they are performing properly. You can keep your eyes on the condition of your batteries to extend their life and ensure that they can deliver electricity when you need it.

  • Voltage

Voltage is an important aspect of charging and discharging lithium batteries. As you charge the battery, the voltage increases. However, as you discharge the battery, the voltage decreases. Knowing your voltage before connecting multiple lithiums in series or parallel is important. If you do not know your voltage, battery damage and fires could be a risk. Therefore, it is essential to understand how voltage works to use lithium batteries safely.

  • Capacity

A capacity indicator on your battery is extremely useful, especially if you have multiple batteries with different capacities. By doing this, you can easily monitor which battery you’re using and optimize it for the task at hand.

Additionally, capacity figures don’t change, so you can be confident that your battery will always perform as expected. This easily accessible information makes it simple to monitor your battery life and guarantees that you’re making the most of your devices.


The “Monitor” tab on the lithium Bluetooth app, as its name suggests, lets you see your LiFePO4 battery‘s current performance in terms of temperature and cycle life.


Current is measured in amps (A), the net current of charging and discharging. For example, suppose the battery is not discharged and connected to a charger. In that case, it’ll show the charging current inputted into the battery, whether it’s 5.0A or 10.0A.

This number will fluctuate when the battery is in use because the current draw will change as the battery uses more or less power. For example, if you’re playing a game that requires a lot of graphics processing, the current draw will be higher than if you’re checking your email.

The CURRENT display feature is useful for monitoring your battery’s power usage and knowing when you need to charge your device.


battery temp curve

In addition to Celsius degrees, you can display Fahrenheit and centigrade temperatures for your lithium battery. Our Bluetooth lithium batteries are compatible with these temperature extremes:

  • The discharge temperature range for this product is -20 to 60ºC (-4 to 140ºF).
  • You can recharge this device between 0 to 45 degrees Celsius (32 to 113 Fahrenheit).
  • Store at a temperature between 5 and 35 degrees Celsius (23 to 95 Fahrenheit).

Green ONE Power Tech’s line of cold-weather lithium batteries are built with self-healing capabilities and can recharge even in frigid temperatures as low as -20ºC.

Cycle life

BT’s Bluetooth app shows you how many times your battery has been charged and discharged and the number of cycles it has undergone. This is important in two ways: First and foremost, Proof enables you to track your battery life so you can see when it’s time for a replacement; second, it can help you determine if it’s time to replace the battery.

The number of cycles a battery undergoes is a good indicator of its overall health. As batteries age, they gradually lose the ability to hold a charge as efficiently as they did when they were new. Batteries will eventually lose their ability to be recharged and must be replaced.

By monitoring the number of cycles your battery has undergone, you can see how long it will continue to perform well. If you notice that the capacity of your battery is declining rapidly, it may be time to replace it. However, if it’s still going strong after several hundred cycles, you can be confident that it will continue to serve you well for years.



The BMS in our Bluetooth LiFePO4 batteries protects your battery from abuse while also recording every activity. Every charge, discharge, short-circuit, temperature change, and other event is recorded. Users may learn more about the data via the LiFePO4 Bluetooth App, which offers such information as:

High-temp when charging

To prevent damaging the battery, charge it only when the temperature is reasonable. The BMS will automatically shut off charging if the temperature gets too high.

High-temp when discharging

Just as with charging, it is important not to discharge the battery at too high a temperature. The BMS will automatically shut off the discharge if the temperature gets too high.

Low-temp when charging

Charging at too low a temperature can damage the battery and reduce capacity. The BMS will automatically shut off charging if the temperature gets too low.

Low-temp when discharging

Discharging at too low a temperature can damage the battery and reduce capacity. The BMS will automatically shut off the discharge if the temperature gets too low.

Over-current when discharging

Overcharging might cause the battery to deteriorate. The BMS will automatically shut off the discharge if the current gets too high.

Over-current when charging

It’s critical not to charge the battery with too much current to avoid damaging it. The BMS will automatically shut off charging if the current gets too high.

Low-voltage protection

Fully discharging a battery can damage it, so the BMS automatically shuts off the discharge when the voltage gets too low.

High-voltage protection

From time to time, the BMS will check the battery’s voltage. If the voltage is too high, it can damage the battery. The BMS will automatically shut off charging if the voltage gets too high.

Temp returned to normal

Cells in the battery can be damaged by too high or too low of a temperature. When the temperature returns to normal, the BMS will automatically turn on charging or discharging.

The current returned to normal

Checking the current returned to normal lets the BMS know it is safe to turn on charging or discharging.

The voltage returned to normal

After the voltage is checked and safe, the BMS will automatically turn on charging or discharging.

Short-circuit recovery

Somewhat self-explanatory, a short circuit can damage the battery. The BMS will automatically shut off the discharge if a short circuit is detected.

Low power

Saving power can help to extend the life of your battery. The BMS will automatically put the battery into sleep mode when it is not used.

How to Calculate and Compare Watt Hours to Amp Hours

How to Calculate and Compare Watt Hours to Amp Hours

Upgrading your RV or boat’s electrical system with solar solutions can be daunting if you don’t understand the basics of measurement, energy and storage. Let’s see if we can simplify it by translating watt-hours to amp-hours.

What is a Watt-Hour?

You can use the watt-hour to determine how much energy something uses if you know how many watts it takes and how long it’s been running.

From this, we know that one watt-hour is the same as 3600 joules (3.600 x 103 J). So if you want to convert watt-hours to joules, you just have to multiply by 3.600 x 103. And if you have joules and want to convert them to watt-hours, you multiply by 2.778 x 10-4.

Usually, energy is equal to power multiplied by time. This formula lets us calculate the energy in watt-hours:

E = Pt

If we plug in the numbers, we get:

E = 60 x 3 = 180 Wh

Remember that power (P) and time (t) has to be specified in watts and hours, respectively. Otherwise, you’ll need to convert before calculating energy in watt-hours.

The graph above depicts the power consumed by a hypothetical household at various times throughout the day.

In general, the watt-hour is only used to express electrical energy. If you’re talking about other forms of energy, like the potential energy in gasoline or coal, then it’s usually expressed in joules (according to the International System of Units) or British thermal units (Btu) (according to the foot-pound-second or English system). For example, if the heat energy from combustion is used to run an electric generator, then the generator’s output over time can be expressed in watt-hours.

What is an Amp-Hour?

The ampere-hour is often used in electroplating and battery capacity measurements where the nominal voltage is dropped. A milliampere second (mA⋅s) is a unit of measurement used in X-ray imaging, diagnostic imaging, and radiation therapy. It is equivalent to a millicoulomb and is proportional to the total X-ray energy produced by a given X-ray tube operated at a particular voltage. Depending on the X-ray tube current, the same total dose can be delivered in different time periods.

When computing energy values in ampere hour, precise data on voltage is required. In a battery system, for example, precisely computing the provided energy necessitates integrating the power delivered (product of instantaneous voltage and instantaneous current) throughout the discharge period. However, as battery voltage generally varies during discharge, using an average or nominal value may be necessary to approximate the integration of power.

What is the formula for converting amp hours to watt hours?

From the example above, you can see how amp-hours do not equal energy. To get the watt-hours, you must multiply the total number of amp-hours by the voltage.

You can convert amp hours to watt-hours by using the equation:

watt-hours = amp-hours x volts.

For your RV, if you have a 12V battery and your device is rated for 100Ah, then you would need to multiply the amp hours (100Ah) by the volts (12V) to get 1200 watt-hours.

You could also get the same 1200 watt-hours from a 24V battery, but you would only need 50Ah since you multiply by 24V.

In other words, the number of volts will determine how many amp-hours you need to get the desired amount of watt-hours.

What is the Watt Hour capacity of a 100 Ah Lithium Battery?

You may be wondering how many watt-hours a 100 Ah lithium battery contains. To solve this question, we must first determine the voltage of the battery.Most 12V lithium batteries have a capacity of 1,200 watt-hours. This means the battery can provide 1,200 watts of power for one hour or 600 watts for two hours, etc.

The capacity of a lithium battery is usually measured in amp hours (Ah). One Ah is equal to 1,000 milliamp hours (mAh). This indicates that a 100 Ah battery can supply 100,000 mAh of electricity.

However, watt hours will vary slightly depending on the nominal voltage. For example, in a 12V Battle Born Battery, the voltage is a little over 13V. This means that the battery has a capacity of 1,300 watt-hours.

This difference is important to remember when comparing different battery types. For example, a lead-acid battery might have a higher Ah rating than a lithium battery, but the lithium battery will have a higher watt-hour rating, meaning it can provide more power.

Tom Morton of Mortons on the Move compares lead-acid and lithium batteries with watt-hour capacity in the video above. He discovers how difficult it is to obtain the claimed energy ratings from lead-acid batteries, as well as how much lithium batteries give under varied loads.

The video shows that the cost per watt-hour of electricity for one of our Battle Born Batteries is actually cheaper than that of all of the tested lead-acid rivals!

This makes lithium batteries a more cost-effective choice in the long run, even though they may have a higher initial price tag.

How long will the 100Ah battery last? 100W, 400W

Because 100Ah batteries can be used for RVs, solar panels, and cars, many people wonder about their battery life.

“How long will a 100 amp-hour battery last??”

The amount of power a motor consumes daily is determined by how many times it is run. This may be calculated using the formula below: When you understand the basic electric power law, it’s easy to figure out how many times a motor is utilized each day:

Power (W) = Current (I) × Voltage (V)

A 100Ah battery can power a 10W device for 120 hours or a 2,000W device for 36 minutes. This type of battery has a capacity of 1.2 kWh and is more than 2% as powerful as the Tesla Model 3 automobile battery.

Watt-hours are used to measure the juice in a 12V 100Ah battery. To know how long the battery will last, we need to look at how much capacity the appliance you’re running uses.

The 100-amp hour battery will power appliances for different amounts of time, as illustrated in the chart below:

Solving these examples will demonstrate how easy it is to calculate these times by hand.

A 100Ah battery will power a refrigerator that requires 400W for how long? (Example 1)
  • Many people who own RVs or caravans are curious about how long a 100Ah battery would last if you ran a 400W appliance off it.

    Trying to grasp a 100Ah just by looking at it might be difficult. However, if you multiply the 100Ah battery capacity by 1,200Wh, you can instantly determine how long the battery will last:

    1. Your battery has 1,200Wh.
    2. This appliance uses 400 watts of power.

    To determine how long a 400W device will run on a 100Ah 12V battery, divide 1,200Wh by 400W. In a nutshell, a 100Ah 12V battery will power a 400W device for three hours.

Does the 100Ah battery keep an appliance powered up that consumes 100 watts for how long? (Example 2)
  • We can use the same principle here. We know that a 100Ah battery will run a 100W appliance for 12 hours because we understand two metrics:

    1. Your battery has 1,200Wh.
    2. This appliance uses 100W.

    When you convert the voltage to mV and divide it by 10,000mV, you get a result of 12h.

Where Can I Find an Ah-Wh Conversion Table?

We know how confusing some amp-hour to watt-hour conversions can be, so we’ve put together this quick reference chart. Please remember that the watts per hour will change based on discharge and temperature changes.

The conversion calculators and graphs are free, but if you want the equations, Google is your friend. Knowing the equations will be beneficial if you need to calculate the amperage for your RV by adding together the watts of several gadgets. It’s never a bad idea that to have a firm grip on your battery’s power requirements, especially when you can’t check them online.

When Will You Need to Calculate Watts and Amp Hours?

Watt- and amp-hour calculations are important to understand your battery’s energy capacity. This will come in handy for trying to run a device on battery power, as you’ll need to know how much battery capacity is required.

Simply put, watt-hours are equal to the number of watts multiplied by the number of hours of use. So, if you have a 50-watt item and want to use it for 10 hours, you’ll need 500 watt-hours.

Amp-hours are calculated by taking the total number of amps required for all devices and multiplying it by the number of hours of use. So, if you have two devices that each require 2 amps and you want to use them for 10 hours, you would need 20 amp-hours.

When designing your solar setup, you’ll need to consider the number of watt-hours required. To do this, add the watts used by each device and divide them by the voltage in your rig. This will provide you with the total amount of amp-hours required.

From there, you can determine the number and type of batteries needed and the size of the solar panels required. The thickness of connecting wires will also be determined by the amp-hours needed.

In short, watt- and amp-hour calculations are important to understand your battery’s energy capacity and how much power your devices use. This information is necessary when running devices on battery power or designing your solar setup.

Knowledge Is Power

As the saying goes, knowledge is power. And when it comes to batteries, that couldn’t be more true. You can effectively compare battery energy capacities by understanding how amp-hours and watt-hours are related. This knowledge is crucial when you need power off the grid. While many batteries are rated for “100 amp-hours,” you can now calculate how much energy such batteries will offer you and for how long.

With this knowledge, you’ll be able to select the best battery for your needs, whether it’s for charging your RV when camping off the grid or keeping your house operating during a power outage. So, when you are shopping for batteries, don’t only look at the amp-hour rating; also consider watt-hours. As a result, you’ll be able to make an educated conclusion.

If you are concerned about an electrical project, please do not hesitate to contact our staff. We at Green ONE Power would be delighted to give support and answer any queries you may have. You can reach out to us at (86) 191 2956 3884.

What is The Difference Between Wiring Batteries in Series Vs. Parallel?

What is The Difference Between Wiring Batteries in Series Vs. Parallel?

Series vs. parallel wiring: do you know the difference? If not, do not worry – this blog post will explain everything. We will also demonstrate how to wire your batteries in each configuration and discuss the advantages of each style of wiring so you can determine which is best for you. Let us get started!

What is the distinction between wiring batteries in series and parallel?

The two most common ways to wire batteries are in series and parallel. Both configurations have their advantages and disadvantages, depending on the desired outcome.

When wiring Lithium batteries in series, the voltages of the individual batteries are added together, this is useful for applications where a higher output voltage is required, such as in an RV or boat where 12 volts is standard. However, the system’s capacity is reduced because only one battery supplies power at a time.

In contrast, wiring batteries in parallel keeps the voltage the same but increases the capacity. This is helpful when a long run time is necessary, such as in a wheelchair or other powered device.

However, it should be noted that the total available energy in both configurations is equal. That means that while one may be able to run for a longer period with Lithium batteries wired in parallel, the amount of power that can be delivered at any given moment is still limited by the number of batteries in the system.

For example, let us say you have two 12-volt, 100 amp hour batteries. You can make a 24-volt, 100-amp-hour battery by connecting them in series. However, if you wire them in parallel, you will still have a 12-volt, 200-amp hour battery.

Wiring Batteries in Series

To wire multiple batteries in series, connect each battery’s positive terminal to the next negative terminal. Then, in series, measure the total output voltage of the system between the negative terminals of the first and last batteries. Let us look at two examples to make this clear.

Wiring Batteries In 12V Series Configuration
series connected batteries

The wiring configuration mentioned below needs two 6V batteries. You will be able to derive 12V from the farthest positive and negative post by utilizing any two 6V batteries that are wired in a positive-negative setup. Your load should be connected at this point.

Wiring Batteries In 48V Series Configuration

You will need four 12V batteries for the following wiring configuration. Connecting any four 12V Lithium batteries, positive to negative, will create 48 volts on the farthest negative and positive post. This is where you will connect your load.


For a series circuit, the current is uniform for all components.


The voltage in a series circuit is the sum of the component voltages, which cause voltage drops (resistance units).

Resistance units

Two or more resistors connected in series have a total resistance equal to the sum of their resistances.

The subscript s in Rs indicates “series,” while Rs refer to a series’s resistance. The electrical conductance is equal to the reciprocal of resistance. The following equation may be used to calculate the total conductance of a series of circuits of pure resistances:

In this case, the total conductance is equal to. For a special case of two conductances in a series,

  • One advantage of wiring batteries in series is that it increases the total voltage. This is handy if you need to power a gadget that demands more voltage than a single battery can supply. For example, if you have four 12-volt batteries, you may connect them in series to generate a 48-volt power supply.
  • One of the main disadvantages of wiring batteries in series is that it limits the voltages that can be used on the system. Lower voltages cannot be obtained from a battery bank in a series-connected system without using a converter. To utilize 12V appliances on the system, all equipment must operate at a higher voltage or an extra converter. This may be expensive and cumbersome, particularly if many devices demand different voltages.
  • Additionally, wiring batteries in series can decrease the system’s overall capacity. This is because each battery in the series effectively shares its capacity with the other batteries in the circuit. As a result, wiring batteries in series is not always the best option for maximizing power and efficiency.

Wiring Batteries in Parallel

You can wire multiple batteries in parallel by connecting all of the positive terminals and all of the negative terminals. This method can measure the system output voltage across any positive and negative battery terminals since they are all connected. Let us look at several instances to help you understand.

Wiring Batteries In 100Ah Parallel Configuration

For instance, two 100 Ah batteries at 6 volts wired in parallel have a total system voltage of 6 volts and a capacity of 200 Ah. The positive terminal on one battery is connected to the positive terminal on the other, and both negative terminals are also connected.

Wiring Batteries In 400Ah Parallel Configuration

In a parallel circuit, the voltage is the same across all wires.


Ohm’s law can find the current in every resistor. The voltage cancelling out gives

Resistance units

It is easy to determine the total resistance of all components by adding up the reciprocals of each component’s resistances Ri and taking the sum’s reciprocal. The value of the smallest resistance will always be less than that of any other resistance:

Two different resistances are required for the unreciprocated statement to be simple:

The reciprocal sum expression for N parallel resistances simplifies to: If you want to understand more about how this works, have a look at my series on interpreting reciprocals.

And therefore, to:

To find the current, or amount of electricity moving through a component per unit time, with resistance Ri in a circuit, use Ohm’s law:

The components in the circuit divide the current evenly according to their reciprocal resistances. In other words, if there are only two resistors present in the circuit,

A parallel circuit of resistors is also known as multiple, such as a group of arcs connected in parallel. Because electrical conductance G is proportional to resistance, the following formula for total conductance of a parallel circuit of resistors holds:

The total conductance and resistance have a complementary relationship – the equation for series resistances is the same as for parallel conductances, and vice versa.

  • One of the primary benefits of putting batteries in parallel is that you may expand your system’s possible runtime while preserving voltage. This is because the amp-hour capacities are additive, so two batteries in parallel double your runtime, three triple it, and so on. This can be beneficial if you need to operate a system for an extended period of time or know you will be without access to a power source for an extended period of time.
  • Another benefit of connecting batteries in parallel is that if one of your batteries dies or has a problem, the remaining batteries in the system can still give power. This is helpful because it means you will not be left without power if something happens to one of your batteries. You will be able to utilize the others until you can replace or repair the broken one.

Overall, wiring batteries in parallel has many advantages that can be useful in different situations. If you need a long runtime or want to ensure you will not be left without power, wiring batteries in parallel is the way to go.


There are a few disadvantages to wiring batteries in parallel vs. series.

  • One is that the system voltage will be lower, resulting in a higher current draw. This can make operating larger power appliances and generation difficult, as they are less efficient when operating at lower voltages.
  • Another drawback is that thicker cables may be needed to handle the higher current, leading to more voltage drops.
  • Finally, wiring batteries in parallel can create an imbalance if one battery drains faster than the others, as this can cause the system to shut down.

Can You Wire Batteries in Series and Parallel?

When you wire batteries in series, you connect them end to end, positive to negative, so that the battery’s voltage is added together. This is why you cannot wire the same batteries in series and parallel, as doing so would create a short circuit. However, you can wire sets of batteries in series and parallel to create a larger battery bank at a higher voltage.

For example, if you have two sets of 12-volt batteries, you can wire them in series so that they create a 24-volt battery bank. You can then wire these two sets in parallel so that they create a battery bank with a higher capacity. The graphic below demonstrates how this may be performed.

As you can see, each set of batteries is wired in series and parallels to create a battery bank. These two banks are then wired in parallel to create a single battery bank with a high voltage and capacity. By wiring batteries this way, you can create a large and powerful battery bank that can be used for various applications.

Are you curious about electrical systems and lithium batteries?

If you are concerned about an electrical project, please do not hesitate to contact our staff. We at Green ONE Power would be delighted to give support and answer any queries you may have. You can reach out to us at (86) 191 2956 3884.

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