Model: SL-2440-4

Battery Type: LiFePO4

Battery Voltage: 25.6V

Battery Capacity: 40Ah

Cycle Life: 2000times

Controller: With / Without PWM controller

Application: CCTV/ Solar Street Light Battery


● Light, powerful, and offering a very long viewing time, this Lithium-ion battery is particularly suitable for cyclic use, when batteries are frequently charged and discharged.

● Built-in BMS. 100% of the capacity is available for your needs, without voltage drop!

● Lithium batteries (Lithium Iron Phosphate) offer many advantages over lead batteries.

● They have a much faster-charging capacity, which allows you to use even the smallest amount of sunlight without being limited by the internal resistance of the battery.

● With lithium, you will charge with the maximum of what the controller can give.

● Unbeatable also when discharging, they easily withstand very fast discharges.

● Comparing the price per ampere-hour available (with lithium you have a very high depth of discharge) we can see that the price per Ah available is just a little bit more expensive than lead batteries.

● Service life at 80% depth of discharge (DoD) ≥ 3000

● Service life at 50% depth of discharge (DoD) LiFePO4 battery ≥4500

ITEMS25.6V 40Ah 
Battery TypeLiFePo4
Configuration 8S1P
cell 3.2V 40ah prismatic battery
Cell internal resistance about 6mΩ or 7mΩ
System Energy 1024WH 
Over Voltage Protection29.2±0.1V
Over Discharge Voltage20V
Max.Charge Current 10A
Max.discharge current10A(Convert to 2A output)
50% DOD5000 times 
80% DOD Cycle times3000 times 
Working Temp. Range/℃ -20℃~+65℃
Storage Humidity less than or equal to 75%RH
Case Material Aluminum Alloy
Case waterproof gradeIP65
Battery sizecustomized

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Tel: +86 0769 85544410

Fax: +86 0769 85544410


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