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• 　Solar Street Light Battery
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• 　Outdoor Portable Battery

24V 12Ah energy storage battery pack

Nominal Voltage: 24V
Nominal Capacity: 12Ah（0.2C discharge）
Continuous Working Current: 2.4A
Over current protection: 10~20A（adjustable）
Over charging protection voltage: 4.25±0.25V/Cell（adjustable）
Discharging protection voltage: 2.50±0.25V/Cell（adjustable）
Charging Type: Constant current & voltage
Charging Current: 0.5C
Charging Temperature & Humidity: 0~45℃、45~85%RH
Discharging Temperature & Humidity: -20~55℃、45~85%RH
Storage Temperature & Humidity

Short-term: over one month -20~+55℃、45~85%RH
Medium-term: over three months -20~+45℃、45~85%RH
Long-term: within one year -5~+20℃、45~85%RH
Dimensions: Height MAX100mm
Length MAX140mm
Thickness MAX60mm
Weight 1800g
Internal Resistance ≤150mΩ

Design scheme of battery pack for energy storage：

1） protection circuit board （PCM）：Mainly design against protection circuit board for rechargeable high capacity battery pack. Because of the chemical characteristics of lithium battery, in order to avoid burning, explosion etc. dangerous situation, must provide over charge, over discharge, short circuit, over current & over heat etc. protection function.

2）protection IC（Protection IC）：Main protection function chip in design scheme, carry on-line constantly monitor on over charge, over discharge, over current, short circuit etc. function of battery cell. Ensure batter cell work within the scope of safety, stability, high efficiency.

3） over current protection chip（PTC）：Mainly design against secondary protection function. PTC can recover thermal fuse with dual function: over current protection & auto recovery. PTC inside battery cell can prevent the cell occurs high temperature discharge and un-safe large current.

4）MOSFET chip：MOSFET chip, on on-off action in protection circuit

5）Packing of battery pack：plastic film