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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2. LED Light Battery 12V 30Ah Specification
| NO. | Items | Criteria |
| 2.1 | Rated Capacity | 30Ah |
| Minimum Capacity | 28.5Ah | |
| 2.2 | Energy | 384Wh |
| 2.3 | Nominal Voltage | 12.8V |
| 2.4 | Outgoing Voltage | 12.8~13.6V |
| 2.5 | Internal resistance | ≤50mΩ |
| 2.6 | Series parallel application | Unavailable |
| 2.7 | Standard charge voltage | 14.6±0.2V |
| 2.8 | Floating charge voltage | 13.8±0.2V |
| 2.9 | Standard charge current | 5A |
| 2.10 | Maximum charge current | 10A |
| 2.11 | Standard discharge current | 40A/ Continue to finished |
| 2.12 | Maximum discharge current | 40A |
| 2.13 | Discharge cut-off voltage | 8.0V |
| 2.14 | Operating Temperature | Charging:0～45℃ |
| Discharging:-20～60℃ | ||
| Recommended operating temperature:15℃～35℃ | ||
| 2.15 | Self-discharge rate | Residual capacity:≤3%/month; ≤15%/year |
| Reversible capacity: ≤1.5%/month; ≤8%/year | ||
| 2.16 | Storage Temperature & Humidity Range | Less than 1 month:-20℃～35℃,45%RH～75％RH |
| Less than 3 months:-10℃～35℃,45%RH～75％RH | ||
Recommended storage environment: 15℃～35℃,45%RH～75％RH | ||
Long time storage: If the battery need be stored for a long time, the voltage should be 13.2V(about 50% SOC), and stored in the condition as storage proposal. It need at least one charge & discharge cycle every six months | ||
3. Battery Pack Electrical Characteristics
| No. | Items | Standards | Testing Methods |
| 1 | Internal Impedance | Impedance ≤50mΩ | Under 20±5℃ Environment Temperature , the Usage Frequency of Fully Charge( 1KHz) , Use AC Internal Impedance test machine to test. |
| 2 | Nominal Capacity | 30Ah | Rest for 0.5~1 hour after fully charge, Using electrical loader to connect with the battery output port, and discharge with constant current 0.2C till it can’t discharge. Do the cycle three times, if there is one time that the discharge time is equal or more than 285minute , you can stop. |
| 3 | Short circuit protection | No load ability after short-circuit .comeback capability of loading after remove the lead away, | Short the pack with the lead (<50mΩ). If remove the lead away, connect the electronic loader with P+, P- of protection board again, so load ability comes back. |
| 4 | Allowed Maximum continuous charge Current | 40A | charging with 40A for more than 0.5h and the added temperature of battery pack less than 20℃. |
| 5 | Allowed Maximum continuous discharge Current | 40A | Discharging with 40A for more than 0.5h and the added temperature of battery pack less than 20℃. |
5. Protective circuit specification
The batteries are supplied with a LiFePO4 Battery Management System (BMS)that can monitor and optimized each single prismatic cell during charge & discharge, to protect the battery pack overcharge, over discharge, short circuit. Overall, the BMS helps to ensure safe and accurate running.
| NO. | Items | Content | Specification |
| 5.1 | Over charge | Over-charge protection for each cell | 3.80±0.03V |
| Over-charge release for each cell | 3.60±0.05V | ||
| Over-charge release method | Under the release voltage | ||
| 5.2 | Over discharge | Over-discharge protection for each cell | 2.00±0.05V |
| Over-discharge release for each cell | 2.30±0.05V | ||
| Over-discharge release method | Charging recovery | ||
| 5.3 | Over current | Discharge over current protection | 35~48A |
| Protection delay time | 10~40ms | ||
| Over current release method | Release after cutoff the load. | ||
| 5.4 | Short circuit protection | NO | Ban battery output positive and negative electrode short circuit |
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