Active Member
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[China]
Address: Topband Industry Park,Tangtou Town,Bao'an District,Sheznzhen,China
Contact name:Jerry Yang
Shenzhen Topband Battery Co., Ltd |
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1. Smart Lithium battery 12V 50Ah Specification
| 1 | Nominal voltage | 12.8V |
| 2 | Normal capacity | 50Ah |
| 3 | Internal resistance | ≤20mΩ |
| 4 | Series application | Not allowed |
| 5 | Communication function | Bluetooth |
| 6 | Operation temperature range @charging | 0~45℃ |
| 7 | Normal charge voltage | 14.6±0.1V |
| 8 | Recommended float charge voltage(for Standby use) | 13.8±0.1V |
| 9 | Allowed MAX charge current | 50A@Battery initial Temp 25±5℃ |
| 10 | Recommended charge current | ≤25A |
| 11 | Operation temperature range @discharging | -20~60℃ |
| 12 | Output Voltage Range | 10.0~14.6V |
| 13 | Allowed discharge current | 50A withstand 30min @Battery initial Temp 25±5℃ |
| 14 | Pulse discharge current | 150A withstand 3s |
| 15 | Discharge Cut-off voltage | 10.0V |
| 16 | Dimension | Length 196±2mm |
| Width 165±2mm | ||
| Height 174±2mm | ||
| 17 | Weight | Approx. 6.5Kg |
2. Smart Lithium battery 12V 50Ah Electrical Characteristics & Test Condition
@Testing Conditions: Ambient Temperature: 25±5℃; Huminity:45%~75%.
| NO | Items | Criterion | Condition | |
| 1 | Internal Impedance | ≤20mΩ | Test the internal resistance of 50% SOC battery pack with 1 kHz AC internal resistance test instrument. | |
| 2 | Capacity | ≥49Ah | Rest for 1 hour after fully charged, then discharge with 0.33C current until the battery reaches the discharge cutoff voltage. Repeat above process for three times, if the discharge time is not less than 180 minutes, you can stop and define the Discharging current*time value (Ah) as battery capacity. | |
| 3 |
Cycle life (DOD%100) | ≥2000cycle | Discharge with the current of 0.5C until it can’t discharge, and then rest it for 1h. Charge the battery following CC(0.33C)/CV(14.6V) mode to full capacity, and then rest it for 1h. Repeat above process until full charged capacity is no more than 80% of normal value. Accumulated times is defined as cycle life. | |
| 4 |
Discharge Temperature Characteristics | -20℃ | ≥70% | At 25±5℃ discharge the battery with the current of 0.33C to the cut-off voltage. Store the battery at various temperatures for 2h and discharge the battery with 0.33C to the cut-off voltage. Record the ratio between discharging & charging capacity. |
| 0℃ | ≥80% | |||
| 25℃ | 100% | |||
| 55℃ | ≥95% | |||
| 5 | Charge Retention ability | remain capacity≥90% | Charge the battery to full capacity and store it for 28days, and then discharge it with 0.33C to the cut-off voltage. | |
3. Smart Lithium battery 12V 50Ah dimension
3. Smart Lithium battery 12V 50Ah feature
4. Application:
1. EV: pure electric car, pure electric bus, hybrid electric vehicles, hybrid electric bus, recreational vehicles, chill cars.
2. Storage: solar and wind complementary stored energy streetlights, energy storage systems, household energy storage.
3. Power Supply: communication base station power supply, utility power supply, communication industry, emergency power supply and other system standby power etc.
5. Bluetooth Function
Bluetooth function for battery pack, it can monitor the following features from smart phones:
