CALB 3.2V 68Ah - LiFePO4 / LFP / Lithium Iron Phosphate Prismatic Cell

217Wh Lithium cell - 5 year warranty, 3000 cycles @ 100%

Why 68Ah?

As lithium cells become larger, their cycle life decreases, 68Ah is a good balance between practicality and lifespan.

Click the "Download Manual" icon under the main image for the full specifications.

Continuous Discharge Current: 1C (68A)
Pulse Current: 3C (204A, 30 seconds maximum)
Maximum Continuous Charge Current: 1C (68A)
Recommended Charge Current 0.3C (20A)
3,000 cycles in nominal conditions when cycled between 100% (3.65V) to 0% (2.5V) until 80% of original capacity

Features:

Qualified for RoHS and CCC with high safety
Anti-explosion safety valve
Aluminium shell for better cooling
Ceramic membrane used to enhance safety
High density - 136Wh/Kg
High charge/discharge rates
Expected to operate for more than 3,000 cycles in optimal working conditions

(L135F68)

Technical Parameters

NO.	Items		Parameter	Remarks
1	Nominal Capacity		68Ah	Standard Discharge
2	Minimal Capacity		68Ah	Standard Discharge
3	Working Voltage		2.5~3.65V	Room Temperature Note: Working voltage at different temperature refers to section 4.2.5 and 4.4.7
4	Internal Resistance（AC. 1kHz）		0.2~0.6mΩ	New Cell 50%SOC
5	Charging Time	Standard Charge	~4h	Reference Value
5	Charging Time	Fast Charge	~1h	Reference Value
6	Operating Temperature	Charging Temperature	-5~55°C	Refer to section 4.2
6	Operating Temperature	Discharging Temperature	-30~55°C	Refer to section 4.4
7	Weight		1.6±0.15kg
8	Shell Material		Aluminium

Charging Model

NO.	Parameter	Specifications	Remarks
4.2.1	Standard Charging Model	At room temperature, charged to 3.65V at a constant current of 20.4A, and then, changed continuously with constant voltage of 3.65V until the current was not more than 3.4±0.5A.
4.2.2	Standard Charging Temperature	25±2℃	Cell Temperature
4.2.3	Absolute Charging Temperature	-5~55℃	No matter what the charging model is, once the temperature of the cell is above the absolute charging temperature, charging should be stopped.
4.2.4	Absolute Charging Voltage	Maximum 3.8V	No matter what the charging model is, including pulse charging, once the voltage of the cell is above the absolute charging voltage, charging should be stopped.

Discharging Model

NO.	Parameter	Specifications	Remarks
4.4.1	Standard Discharging Model	At room temperature, discharge to 2.5V at a constant current of 68A.
4.4.2	Maximum Constant Discharging Current	68A
4.4.3	Maximum Pulse Discharging Current（Long Pulse）	136A	Maximum duration: 3min
4.4.4	Maximum Pulse Discharging Current（Short Pulse）	204A	When battery temperature is below 50℃, the maximum discharge can last 30s
4.4.5	Standard Discharging Temperature	25±2℃	Cell Temperature
4.4.6	Absolute Discharging Temperature	-30~55℃	No matter what the discharging model is, once the temperature of the cell is above the absolute discharging temperature, discharging should be stopped.

With the repeated charging and discharging, the battery's capacity will gradually decline. The number of charge-discharge cycles a battery can go through before it reaches 80% of its rated capacity called cycle life.

For full specifications, please see the manual attached - below the main product photo.

5-YEARS after-sales guarantee.

After 5 Years OR 3000 cycles, whichever is first:

the cell capacity must meet or exceed 54Ah

Providing:

A BMS with cell balancing and overvoltage/undervoltage logging is required to prove suitable usage of the cells. Please see the Daly BMS or REC BMS units.
The battery is being charged with lithium compatible chargers
There have been no out of tolerance events
The battery is stored out of the elements (under-bonnet use not acceptable)