Polymer lithium battery 3.7V 50Ah electric vehicle, communication energy storage, electric two-wheeled vehicle
The model battery can be replaced for:
Motorcycles batteries, trucks batteries, yachts batteries, cars batteries, buses batteries, Launch batteries, ships batteries, racing cars batteries, Tricycles batteries, Pedicab batteries, three wheeler vehicle batteries, Limousine batteries, Telecom Stations batteries, UPS batteries, Solar Energy Storage batteries, Bank Power supply systems batteries, Wind Energy Storage batteries, Hospital Power Supply system batteries, Home Power System batteries, Electric tool, etc.
1. This specification defines the performance of rechargeable polymer lithium batteries. The types, performance, technical characteristics, warnings and precautions of the Guanyu-FF-160 battery pack produced by Shenzhen Guanyu New Energy Technology Co., Ltd. are introduced.
2. Specification
| NO | Items | Description |
| Normal specification |
| 1 | Nominal Voltage | 3.7V |
| 2 | Normal Capacity | 50Ah |
| 3 | Internal Resistance | ≤0.7mΩ |
| Standard Charge |
| 4 | Battery operation temperature range @charging | -20~50°C |
| 5 | Normal charge voltage | 4.2±0.1V |
| 6 | Recommended float charge voltage(for Standby use) | 3.8±0.1V |
| 7 | Allowed MAX charge current | 5A@Battery initial Temp 25±5℃ |
| 8 | Recommended charge current | ≤3A |
| Standard discharge |
| 9 | Battery operation temperature range @discharging | -20~ 50℃ |
| 10 | Output Voltage Range | 2.8~4.2V |
| 11 | Allowed discharge current | 25A withstand 30min @Battery initial Temp 25±5℃ |
| 12 | Pulse discharge current | 50A withstand 3s |
| 13 | Discharge Cut-off voltage | 3.7V |
| Mechanical Characteristics |
| 14 | Dimension | Length 141mm |
| Width 100mm |
| Height 12mm |
| 15 | Weight | Approx. 250g |
| Storage |
| 16 | Storage Temperature & Humidity Range | Short: within one month | -20~35℃, 45~75%RH |
| Long term: above one month | -10~30℃, 45~75%RH |
| 17 | Self-discharge rate | Residual capacity | ≤3% per month; ≤15% per year |
| Reversible capacity | ≤1.5%per month; ≤8% per year |
3. Electrical Characteristics & Test Condition
Testing Conditions: Ambient Temperature: 25±5℃; Huminity:45%~75%.
| NO | Items | Criterion | Condition |
| 1 | Internal Impedance | ≤0.7mΩ | Test the internal resistance of 50% SOC battery pack with 1 kHz AC internal resistance test instrument. |
| 2 | Capacity | ≥50A | 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 | Short circuit protection | Automatically cutoff discharging when short circuit, and release after remove the lead. | Connect the positive and negative of this battery pack through a lead with the resistance less than 5mΩ. |
| 4 | MAX charge Current | 5A | Charging with this current for more than 0.5h and the added temperature of battery pack less than 20℃. |
| 5 | MAX discharge Current | 50A/3s | Discharging with this current for more than 0.5h and the added temperature of battery pack less than 35℃. |
| 6 | Cycle life (DOD%100) | ≥1000cycle | 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. |
| 7 | 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% |
| 8 | 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. |
4. Dimensional Drawing
5.Storage & Transportation
* Based on the character of cell, proper environment for transportation of LiFePO4 battery pack need to be created to protect the battery.
* Battery should be stayed in the ware house -20℃～35℃ where it’s dry, clean, shade, and well-ventilated.
* The battery should be stored in 50% SOC during transportation.
* The battery need to be charged every 6 months if out of use
* Keep the battery against dropping, turning over and serious stacking during loading.
6. Warning & Tips
Before using the battery, please read and observe the specifications and precautions on the battery surface. Improper use may cause the battery to heat up, catch fire, crack, damage or decrease its capacity. Shenzhen Guanyu New Energy Technology Co., Ltd. is not responsible for any accidents caused by non-compliance
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Polymer lithium battery 3.7V 50A electric vehicle, communication energy storage, electric two-wheeled vehicle
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