12.8V 2560Wh Household LiFePO4 Battery

This lithium battery model is the Hertz 12200, featuring a nominal voltage of 12.8V and a nominal capacity of 200AH, with a total nominal energy of 2560WH. It utilizes Prismatic 100Ah battery cells configured in a 4S2P arrangement. The maximum continuous charge and discharge currents are both 100A, with a DC resistance of less than 10mΩ. Charging is cut off at 14.6V, while discharging is cut off at 10V. It operates within a temperature range of 0~55°C during charging, -20~60°C during discharge, and -20~45°C during storage. The dimensions are 522x240x218mm, with a weight of 25kg and screw terminal type. It is sealed with a screw or gel sealing, optionally providing IP65 waterproofing. It boasts a cycle life of over 6000 cycles at 80% depth of discharge (DOD). Optional features include an LCD screen for displaying voltage and remaining power percentage, as well as Bluetooth connectivity for monitoring via a mobile app. Additionally, it supports series and parallel connections to achieve different output voltages such as 24V, 36V, and 48V.

Color:	Black
Voltage:	12.8V
Capacity(Ah):	200Ah
Capacity(Wh):	2560Wh
Availability:



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Model:
12.8V 200Ah LiFePO4 Battery
Brand:
HelithTech

Product Description

General Information

The specifications for this lithium battery:

Model: Hertz 12200
Nominal Voltage: 12.8V
Nominal Capacity: 200AH
Nominal Energy: 2560WH
Battery Cell Type: Prismatic 100Ah Lithium-ion
Configuration: 4S2P (4 cells in series, 2 sets in parallel)
Max. Continuous Charge Current: 100A
Max. Continuous Discharge Current: 100A
DC Resistance: ≤10mΩ
Charging Cut-off Voltage: 14.6V
Discharging Cut-off Voltage: 10V
Operate Charge Temperature Range: 0~55°C
Operate Discharge Temperature Range: -20~60°C
Operate Storage Temperature Range: -20~45°C
Dimension: 522x240x218mm
Weight: 25kg
Terminal Type: Screw terminal
Cover Sealing type: Screw / gel sealing optional
Waterproof: IP65
Cycle Life: >6000 Cycles (80% DOD)
LCD Screen Display: Optional (Shows voltage V, Power %)
Bluetooth: Optional (Bluetooth with mobile APP for monitoring)
Series and Parallels Function: Available to create series and parallel configurations for 24V, 36V, 48V setup

Battery Cell

Battery Cell Specification

The biggest advantage of prismatic cells is its thin profile, lightweight, and the effective use of space. Due to the rectangle shape of these cells, it can facilitate better layering and increase flexibility in the products. With big capacity, less cell assembled together makes monitoring on each battery cell instead of cell string become possible. Changing defective battery cell is feasible too when there is cell failure.

Cell Dimensions

Item	Parameter	Size
A	Height	240 mm
B	Width	218 mm
C	Length	522 mm
D	Weight	25 kg

Cell Technical Data

Intelligent factory design, high performance consistency;
Square aluminum shell, high-precision explosion-proof valve, high safety performance;
Low internal resistance, high discharge rate and stable discharge platform;
Long cycle life, the capacity retention ratio exceeds 70% after 4000 cycle @ 0.5C/1C

#	Item		Parameter	Remark
1	Rated Capacity		50 Ah	Standard discharge（0.2 C₅） After standard charge（0.2 C₅）
2	Minimal Rated Capacity		49 Ah
3	Nominal Voltage		12.8V	working voltage
4	Discharge cut-off voltage		≥8V	10.0V(recommended)
5	Charging cut-off voltage		≤15.6V	14.6V (recommended)
6	Standard charge		0.2C constant current(CC) charge to 14.6V, then constant voltage (CV)14.6V charge till charge current decline to ≤0.05C	Charge time : Approx 6h
7	Standard discharge		Constant current 0.2C Cut-off voltage 10.0V
8	Maximum Charge Current		50A
9	Max Continuous Discharge Current		50A
10	Peak current		150A
11	Operation Conditions	Charge	0~45℃	60±25%R.H. 23 ± 5°C(recommended)
		Discharge	-10~60℃
12	Storage Conditions		Less than 1 year : 0~25℃	60±25%R.H. at the shipment state
			Less than 3 months:-10~35℃

Precautions

When using this battery, it's important to pay attention to the following points:

Operating Temperature: Ensure that the battery operates within the specified temperature range. Avoid extreme temperatures as they can affect performance and longevity.
Charging Parameters: Follow the recommended charging cut-off voltage and charging current to prevent overcharging, which can damage the battery.
Discharging Parameters: Adhere to the specified discharging cut-off voltage to prevent over-discharging, which can reduce the battery's lifespan.
Cycle Life: Be aware of the cycle life specifications and try to operate the battery within recommended depth of discharge (DOD) limits to maximize its lifespan.
Waterproofing: If the battery is used in environments where exposure to water is possible, ensure proper sealing (if available) and maintenance of IP65 waterproofing to prevent damage.
Monitoring: If optional features like the LCD screen display or Bluetooth connectivity are utilized, regularly monitor the battery's voltage, power percentage, and other relevant parameters to ensure optimal performance.
Series and Parallel Configurations: If configuring the battery in series or parallel setups to obtain different voltage levels, ensure proper connections and balancing to distribute load evenly across cells.
Maintenance: Periodically inspect the battery terminals for tightness and cleanliness. Follow manufacturer guidelines for maintenance and service intervals.
Transportation and Storage: During transportation and storage, adhere to the specified temperature range and handle the battery with care to prevent physical damage.
Safety Precautions: Always handle the battery with caution, follow safety instructions provided by the manufacturer, and avoid short circuits or physical abuse that could lead to fire or injury.