Brand：CHAO MI NEW ENERGY
Product origin：Chongqing, China
Delivery time：3-10 working days
Supply capacity：100,000 pcs per day
Product introduction |
| ● Eight-protection certification to protect you and your family. ● Overcharge protection, overcurrent protection, overvoltage protection, over-discharge protection, short circuit protection,overheat protection, overpower protection, and intelligent protection. ● Waterproof, cold resistant and high temperature resistant, to satisfy your use in all seasons. ● Low noise and quiet operation.Lower noise value due to low frequency operation. |
Product Features 48V20Ah Li-ion batteries,featuring small volume,large capacity,fast charging and long endurance. |
Product parameters |
S/N | Content | Parameter | Remarks |
1 | Model | CM-NT4820 | |
2 | Nominal voltage | 48 V | Delivery voltage ≥48V |
3 | Rated capacity | 20 Ah | Test capacity in accordance with standard charge and discharge ≥20Ah |
4 | Charge cut-off voltage | 54.6 V | |
5 | Discharge cut-off voltage | 36.4 V | |
6 | Standard charge current | 4A | |
7 | Standard discharge current | 10A | |
8 | Maximum instantaneous current | 60A | |
9 | Internal resistance | ≤150mΩ | Measure at AC 1kHz after standard charge |
10 | Protection grade | IP67 | |
11 | Operating temperature | Charge：0~45°C | |
Discharge：-20~60°C | |||
12 | Storage temperature | 0~45C | Charge and discharge the battery once every 90 days during long-term storage, and store the battery at half-power state |
13 | Overall dimension | 178*153*170 | |
14 | Cycle life | 600 | Capacity after 600 times of standard cycles ≥60% of initial capacity |
Lithium battery intelligent management system -system architecture
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