Professional and reliable lithium battery and nimh battery manufacturer since 1999.
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Professional and reliable lithium battery and nimh battery manufacturer since 1999.
ES4810X/ES4810
ES4820X / ES4820
| Model | ES4810X | ES4810 | ES4820X | ES4820 | |
| General Characteristics | |||||
| Nominal voltage | 48V | 51.2V | 48V | 51.2V | |
| Nominal capacity@0.2C | 12Ah | 12Ah | 24Ah | 24Ah | |
| Min. capacity@0.2C | 11.5Ah | 11.5Ah | 23Ah | 23Ah | |
| Nominal energy | 576Wh | 614.4Wh | 1152Wh | 1228.8Wh | |
| Dimensions(W*D*H) | 483*373*44mm | 483*373*44mm | 483*365*88mm | 483*365*88mm | |
| Approx, weight | 9Kg | 9.2Kg | 16.2Kg | 16.8Kg | |
| Electrical Characteristics | |||||
| Operating voltage range | 42V-53.2V | 44.8V~56.8V | 42V-53.2V | 44.8V~56.8V | |
| Recommended charging voltage | 52.5V | 56V | 52.5V | 56V | |
| Max. charging current | 5A | 5A | 10A | 10A | |
| Charging current limit in parallel connection (programmable ON/OFF) | 2A | 2A | 2A | 2A | |
| Max. continuous discharging current | 10A | 10A | 20A | 20A | |
| Max. peak discharging current | 12A(<3S) | 12A(<3S) | 12A (<3S) | 12A (<3S) | |
| Discharging cut-off voltage | 42V | 44.8V | 42V | 44.8V | |
| Faraday charging efficiency | > 98% | > 98% | > 98% | > 98% | |
| Energy charging efficiency | > 92% | > 92% | > 92% | > 92% | |
| Internal resistance | 140mQ | 150mQ | HOmQ | 120mQ | |
| Self-discharge | < 3.5% | < 3.5% | < 3.5% | < 3.5% | |
| Cycle Life (@25℃,0.2C,80%DOD) | 1800 Cycles | 1800 Cycles | 1800 Cycles | 1800 Cycles | |
| Operating Conditions | |||||
| Operating temperature | Charge | 0℃~45℃ | 0℃~45℃ | ||
| Discharge | -10℃~45℃ | -10℃~45℃ | |||
| Storage temperature | -20℃~45℃ | -20℃~45℃ | |||
| Storage duration | 12 Months @20℃~25℃ | 12 Months @20℃~25℃ | |||
| Safety standard | UL1642 at cell level | UL 1642 at cell level | |||
| Water dust resistance | IP30 | IP30 | |||
| Parallel function | Maximum support 16 units in parallel, recommended no more than 12 units | Maximum support 16 units in parallel, recommended no more than 12 units | |||
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With leading edge technology, strong research and development and well-established sales network, FBTech has been becoming one of famous battery manufacturers.
Our Group has passed the ISO 90001 international quality certification and UL certification,all product meet ROHS & REACH directons.
