20-A1366-12.8V50.4Ah Battery Pack Specification
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Product Manual Product Name： Product Model： Date: CUSTOMER APPROVED Customer Confirmation：

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Quality Statement Proper use and maintenance will ensure that the battery (or battery system) will operate reliably and consistently for long periods of time.  After receiving the product, please check if the packaging is in good condition. If the packing is broken, it may cause damage to the product. If there is any damage, please contact our after-sales or sales staff within five working days.  Anyone who does not use or maintain the battery according to the manual shall be deemed to give up the warranty right. Suppliers and its service station have the right to no longer guarantee the...

1 Product Index 1.1 Product Parameter No. Product Model Normal Voltage Rated Capacity Internal Resistance Shell material Charge Voltage Standard Cutoff Voltage Charge Current Charging cut-off current Discharge Current Passive Protection Normal Current Over charge protection, Over discharge protection, Temperature protection, Balanced function Function Charge and Discharge Charge Retention After charging according to standard 3.2, placing the battery for 28 days under the standard test conditions, then discharge it under standard 3.3, and the charge retention rate is ≥80%. Cycle time The...

2 Battery Usages 2.1 Charge Charging terminal of battery is connected to charger appropriate with it, and then charge. Charging voltage is14.4±0.15V. Do not reverse. 2.2 Discharge Note that the positive and negative (poles are not reversed as indicated by the battery case logo), then connect to the matching load. 3 Battery Test Single cell and Protection board specification are only results of standard test, this is for reference. 3.1 Standard Test Requirements Battery tested must be done within 1 month after production. If the battery is not tested on time due to transportation or other...

● Do not combine the battery in series or in parallel. ● Do not reverse polarity charging. Do not connect the battery electrodes to an electrical outlet. ● Do not transport or store the battery together with metal objects such as hairpins, necklaces, etc. ● Do not strike, trample, throw, fall and shock the battery. ● Do not directly weld the battery and pierce the battery with a nail or other sharp objects. ● Do not use the battery in the location where static electricity and magnetic field is strong. Otherwise the battery protection circuit may be damaged. ● Do not overload the battery. ●...

6.4 Battery Working Requirements ●Charge current shall not exceed the specified maximum charge current, which may affect the service life of the battery or damage the internal circuit, or even cause danger. ● Discharge current shall not exceed the specified maximum discharge current, which may affect the service life of the battery or damage the internal circuit ,or even cause danger. ● When the battery is short of power, it should be charged in time, which is beneficial to extend the battery life. If the battery is not charged in time, battery is in the state of power shortage for a long...

Insufficient capacity Solution: To charge and discharge the battery with 3~5 cycles generally.   Battery voltage instability or cannot charge or discharge normally. Faulty welding Solution: To test the resistance with the internal resistance tester, and confirm the internal resistance of the battery exceeding a predetermined value or not. If not, the battery would be in faulty welding condition, the battery needs to be unpacked and be welded again.  Protection board abnormal Solution: replace the protection board.  Connector or terminals in poor connecting condition Solution: change the...