12V 30Ah Solar Street Light Battery Pack
Lithium Batteries are most suitable for solar streetlight applications due to their lightweight and compact structure. LFP chemistry can stand at high-temperature conditions with a higher life cycle. It is the safest among all lithium batteries. Its nominal voltage range of 12.8V suits the charging requirements of the panel.
Benefits and Features :
- Compact Design
- Zero Maintenance
- Suitable for Outdoor use
- Theft Protection
- Higher Cyclic life
Basic specifications:
| Project | Specifications |
|---|---|
| Charging Voltage | 14.6V |
| Nominal Voltage | 12.8V |
| Load Voltage | ≥12.4V |
| Nominal Capacity | 30Ah |
| Standard Charging Method | 5A (constant current) charging to 14.6V and CV (constant voltage 14.6V) charge until the charge current ≤ 0.02C |
| Maximum Charge Current | 5A |
| Maximum Continuous Discharge Current | 5A |
| The Maximum Current | 10.0A |
| The Discharge Cut-off Voltage | 10.0V |
| Using Temperature | Charging: 0℃ ~45℃ discharge: -20℃ ~45℃ |
| Storage Temperature | 23 ± 5℃ |
Electrical properties:
| NO. | Project | Test method and conditions | Standard |
|---|---|---|---|
| 1 | Standard charge | Constant current charging 0.2C to 14.6V and 14.6V charge until the charge current with constant pressure ≤ 0.02C | |
| 2 | Initial capacity | The volume refers to the standard charge, to 10.0V 0.2C discharge cut-off voltage emits capacity. | ≥30Ah |
| 3 | Cycle life | Test conditions: charging: 0.2C constant current and constant voltage charging to 14.6V globe current 0.02C discharge 0.2C discharge to 10.0V when the capacity drops below the initial capacity at 80%, the complete cycle is defined as the cycle life of the battery pack. | ≥ 5000 |
| 4 | 30-day charge retention rate | Standard charge, stored under No.3.5 condition for 30 days, and then to 10.0V out of 0.2C discharge capacity. And then press method 3.1.1 battery charge, 0.2C discharges to 10.0V. | Volume retention capacity recovery rate ≥ 90%, ≥ 95% |
| 5 | The initial internal resistance | Half charge State, measuring AC impedance of the AC 1KHz | ≤120mΩ |
| 6 | Voltage | Outgoing voltage | 12.8V |
| 7 | Temperature characteristics | 1. at 23 ± 5 ℃, 3.1.1 will charge the battery. 2. at different temperatures, with 0.3C of current to constant-current discharge cut-off voltage 10.0V. To 23 percent when calculated on a capacity basis. |
-20℃: discharge volumes 0℃ ≥ 70% discharge capacity of 23℃ ≥ 80% discharge capacity 55℃ ≥ 95% |
| Project | Standard | Adoption of the |
|---|---|---|
| Short circuit | External short circuit the battery 10min, external line resistance should be less than 5M. The battery should be no explosion, no fire | Pass |
| Overcharge | At 23 ± 5 ℃ condition, battery 1C charge to 15V, and constant voltage 15V current fall close to 0A, monitor the battery temperature, when the temperature drops below the peak of about 10℃, to stop the tests. Battery should not fire and not explode. | Pass |
| Over discharge | At 23 ± 5 ℃ condition according to standard discharge requirements after discharge to voltage, external 30Ω load discharged 24 hours. batteries should be no explosion, no fire, no leakage. | Pass |
| Heating | Battery within 85℃ ± 2℃ thermostat and thermal insulation 120min. The battery should be no explosion, no fire | Pass |
| Acupuncture | Φ 3mm~ 8mm high temperature wire, at a 10-40mm/s speed, perpendicular to the direction of the battery plates, at least throughout the cell (the wire stays in the cell). Battery explosion, no fire | Pass |
| Extrusion | Orientation to perpendicular to the battery press, squeeze to the battery module 85% of the original size, keep 5min and squeeze again to the battery module 50% of the original size. | Pass |
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