51.2v 100ah lifepo4 powerwall

51.2V 100Ah Lifepo4 Battery

51.2v 100ah lifepo4 powerwall


Wall-Mounted LifePo4

Nominal Voltage


Nominal Capacity


Continuous Charge Current


Continuous Discharge Current


Net Weight




51.2v 100ah lifepo4 powerwall

The Lithium Iron Phosphate Battery refers to the lithium-ion battery with LiFePo4 as the positive electrode material. The anode materials of lithium-ion batteries mainly include lithium cobaltate, lithium manganate, lithium nickelate, ternary materials, lithium iron phosphate, and so on, among which lithium cobaltate is the anode material used in the vast majority of lithium-ion batteries. In terms of material principle, lithium phosphate also contains an embedding and de-embedding process, which is the same as lithium cobalt and lithium manganese. 

We designed the new 51.2v lifepo4 battery pack using high-quality lithium phosphate cells with the highest safety standards and optimal battery structure. With the most advanced BMS providing full protection and real-time monitoring, this battery pack is suitable for RV energy storage power supply, electric vehicles, solar/wind energy storage systems, backup power supply, telecommunications, medical equipment, mobile power stations, solar energy storage, advertising vehicles, communication command vehicles, mobile vehicles, low-speed electric four-wheelers, industrial automation electrical equipment, UPS emergency power supply, etc.

The characteristics of the 51.2V Lifepo4 Battery:
1. Longer cycle life: Compared to the lead-acid battery, its cycle life is 10 times longer, and float charge/calendar life is 5 times longer, helping to minimize replacement costs and reduce the total cost of ownership.
2. Lighter weight: It is about 40% the weight of the comparable lead-acid battery, making it a “direct” alternative to the lead-acid battery.
3. Higher power: It provides twice the power of the lead-acid battery and even a higher discharge rate while maintaining the high energy capacity.
4. Wider temperature range: -20℃~60℃
5. Excellent security: Lithium iron phosphate eliminates the risk of explosion or combustion due to high impact, overcharging, or short circuit.
6. No memory effect: It supports the utilization of Unstable Partial State of Charge (UPSOC) (charge/discharge).

Specification of 51.2v 100ah lifepo4 powerwall



Rated Voltage


Rated Power


Nominal Capacity


Discharge Efficiency


Charging Efficiency


Continuous Discharge Current


Charge Temperature


Discharge Temperature


Net Weight




Life Cycle

≥6,000 cycles @80%DOD @25℃



More Introduction


This manual describes the assembly, installation, operation, and troubleshooting of the machine. Please read this manual carefully before installation and operation. Keep this manual for future reference.


This document provides the safety installation guide, tools, and cable connection information.

Safety instruction

Warning: This chapter contains important safety and operational instructions. Read and keep this manual for future reference.

  • Read all instructions and warning marks for the unit, the battery, and all relevant sections of this manual before using the unit.
  • Note: To reduce the risk of injury, only use a special lithium iron phosphate charger to charge the battery. Other types of batteries may burst, causing personal injury and damage.
  • Do not disassemble the machine. When repairs are required, please take them to a qualified service center. Incorrect reassembly may result in a risk of electric shock or fire.
  • To reduce the risk of electric shock, disconnect all wires before performing any maintenance or cleaning. Turning the device off does not reduce this risk.
  • Note: Only qualified personnel can install the device using batteries.
  • For optimal operation of this battery pack, select the appropriate cable size according to the required specifications. And the right inverter/charger is very important.
  • Be very careful when using metal tools on or around batteries. Dropping tools may cause sparks or short circuits in batteries or other electrical components and may cause an explosion.
  • When disconnecting AC or DC terminals, strictly follow the installation procedure. Refer to the installation section of this manual for details.

1.2 Product Introduction 

  • This product is the lithium iron phosphate battery pack (including BMS) designed and manufactured by our company. It is composed of 16 battery cells, the battery group using intelligent sorting, accurate and reliable; BMS uses a professional protection panel test system to conduct a comprehensive test before going online to ensure that BMS can achieve comprehensive and effective protection of the battery pack during use. This product has high energy density, long life, safe and reliability, light weight, wide temperature range, and other characteristics, which are your reliable green environmental protection products.    

(1) When the battery is charged 

  •  The six capacity indicators are displayed based on the current battery capacity;
  •  The RUN indicator blinks every 1 second;
  •  The six capacity indicators of the battery are steady. When the RUN indicator is off, the battery is fully charged.

(2) Battery discharge:

  • The RUN normally on lamp RUN;
  •  The six capacity indicators display the remaining capacity of battery discharge;
  • When the battery is discharged to the protection voltage, it enters the protection state. All indicators of the battery are off.

(3) The battery warning:

  • When a battery fault occurs, the ALM indicator is red, indicating a battery fault alarm.

(4) ADS Dial the code ADS:

  • The DIP switch is on the left of the protection board jack. 

(5) RS232 monitoring port RS232:

  • The battery system uses RS232 serial port communication mode when uploading data. Through the RS232 serial port, the battery system can be monitored in the background in a centralized manner, and the working status and alarm information of the battery system can be transmitted to the remote monitoring center to achieve remote monitoring.

(6) Buzzer action Description

  • When a fault occurs, 0.25 seconds is emitted every 1 second. 
  • When protected, chirp 0.25 seconds every 2 seconds (except for over-voltage protection) 
  • When an alarm is generated, the alarm is generated every 3 seconds for 0.25 seconds (except for an over-voltage alarm).
  • The buzzer function can be enabled or disabled by the host computer but is disabled by factory default. 

(7)button Description

  • When the BMS is in a hibernation state, press the button for 3 to 6 seconds and release it. The protection board is activated, and the LED indicator turns on for 0.5 seconds from “RUN”.
  • When the BMS is in the active state, press the button for 3 to 6 seconds and release it, the protection board will be hibernated, and the LED indicator will turn on for 0.5 seconds from the lowest power indicator.
  • When the BMS is in the active state, press the button for 6 to 10 seconds and release it, the protection board is reset, and the LED lights are all on for 1.5 seconds at the same time.
  • After the BMS is reset, the parameters and functions set by the upper computer are still retained. If it is necessary to restore the initial parameters, it can be achieved by “restoring default values” on the upper computer.
  • However, the relevant operating records and stored data remain unchanged (such as power consumption, number of cycles, protection records, etc.).

(8) Dormancy and Rouse

8.1 Dormancy

  • When any of the following conditions are met, the system enters the low-power mode:
  • Single or total over-release protection is not removed within 30 seconds.
  • Press the button for 3 to 6 seconds and release the button.
  • The minimum cell voltage is lower than the sleep voltage, and the duration reaches the sleep delay time (while satisfying no communication, no protection, no equalization, and no current).
  • Standby time more than 24 hours (no communication, no charge and discharge, no mains)
  • Forced shutdown through the upper computer software.
  • Before hibernation, ensure that no external voltage is connected to the input terminal. Otherwise, the low-power mode cannot be entered.

8.2 Rouse

  • When the system is in low-power mode and meets any of the following conditions, the system exits the low-power mode and enters the normal mode:
  • The output voltage of the charger must be greater than 48V.
  • Press the button for 3 to 6 seconds and release the button.
  • RS232 communication activated.

Note: After the single or overall over-discharge protection, enter the low-power mode, wake up every 4 hours, and start the charge and discharge MOS. If it can be charged, it will exit hibernation state and enter normal charging; If the automatic wake-up fails to charge for 10 consecutive times, it will no longer wake up automatically.

When the system defines that after the end of charging, the recovery voltage is still not reached after 2 days of standby (standby time set value), forcing the recovery of charging until the end of recharging.

(9)Communication Description

9.1 RS232 communication RS232

  • BMS can communicate with the host computer through the RS232 interface, so that various information of the battery can be monitored through the host computer, including battery voltage, current, temperature, status and battery production information, etc. The default baud rate is 9600bps.

9.2 CAN communication CAN

  • CAN communication, the default communication rate is 500K.

9.3 RS485 communication RS485

  • With dual RS485 ports, you can view PACK information. The default baud rate is 9600bps. If the monitoring device functions as a host and needs to communicate with the monitoring device over the RS485 port, set the address range to 2 to 15 based on the address polling data.

48 volt lifepo4 battery Of Various Capacities

Lifepo4 Battery Cells Of production


lithium phosphate cell Application:

The 3.2V 150Ah Lithium iron phosphate cell with a long life cycle of 3000 times for: 12V/24V solar energy storage power system, UPS supply engine starting battery, electric bicycle/motorcycle/scooter, golf trolley/carts, power tools, wind power system, RV and caravan. The QH Tech LiFePO4 batteries are manufactured to exacting specifications, and for this reason, we have found in our own experience that they could be the batteries of choice that will satisfy your needs.