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25.6V 4500mAh Lithium ion Battery Pack for Photovoltaic (pv) Cleaning Robot

Photovoltaic (pv) cleaning robot
With the rapid development of photovoltaic power industry, large quantity of photovoltaic power plants are built. The photovoltaic cleaning robot are used more and more widely because the maintenance of PV become very critical.The battery powered for cleaning robot are requested to be with futures of long life circles, low self-discharge rate, long sheld life, deep discharge capability, high charging efficiency, less maintenance or free maintenance,supply power under low temperature.

Applicable environment Applicable occasion Outddor
Working temperature/humidity -2060; 4060%RH
Storage temperature/humidity -2060; 5070%RH
Special performances Requirements of charge and discharge under high/low temperature 045 charge; -2060 discharge
Other requirements Shelf life 1 year
Explosion-proof grade /
Water-proof grade IP65
Dust-proof  grade IP65
 Number of drop test /
Electrical characteristics Work voltage range 16V~29.2V
Capacity 4500mAh
Work time 2hours
Dimension 76*186.1*138mm
Work current 5A
Short circuit protection Yes
Max Start-up current 15A
Max continous work current 10A
Power frequency and time Daily use
Power management /
Certification of finished product and environmental requirements RoHS
Battey solution Battery specification 18650/8S3P/4500mAh/25.6V
Model 18650/1500mAh/3.2V
PCB amd components IC SH367004AAJ
MOS HY1906
Others PTC heating plates
Encapsulation mode Plastic case + basic protection
Specification Nominal Voltage 25.6V
Nominal Capacity 4.5Ah
Dimension 76*186.1*138mm
Internal resistance ≤150mΩ
Weight 1.2KG
Charge current 2.25A
Continous discharge current 5.0A
Protective current 30.0A
Charge voltage 29.2V
Cut-off voltage 16V
Life Circle Charge at  0.5C, discharge at 0.5C, 1000times
Charge temperature -20~45℃
Discharge temperature -20~60℃
Storeage temperature -2030  less than 6 months
Protective temperature /
Main Features 1.  Waterproof & dustproof IP65
2. Charge at low temperature
3. With temperature protection when charge at 55-65                                                                     
Photos of battery pack  25.6V 4500mAh Lithium ion Battery