Production Capacity >
- Employees: 501 - 1000 People
- Factory Size: 10,000-30,000 square meters
- No. of Production Lines: Above 10
Research & Design >
- No.of R&D Engineer: 21 - 30 People
- Production Certification: 4
- Trademark: 1
Quality Control >
- No. of In-line QC/QA: 030
Trade Capacity >
- Export Mode: Have Own Export License
- Export Percentage: 81% - 90%
- No. of Employees inTrade Department: Above 50 People
Detailed info of Topband lifepo4 battery 48V 20AH are as below:
NO. | Items | Characteristics | Testing Methods | |
1 | Nominal Voltage | 48V |
Follow GB/T18287-2013 | |
2 | Nominal Capacity | 20Ah | Follow GB/T18287-2013 | |
3 | Minimum Capacity | 19Ah | Follow GB/T18287-2013 | |
4 | Battery internal Impedance | Internal Impedance≤60mΩ, | Internal Impedance Testing Machine( HIOKI 3555,1kHz ) | |
5 | Shipment Voltage | 51V~56V | Multi-meter | |
6 | Dimension | Length | As external dimension drawning | Vernier caliper |
Width | ||||
Height | ||||
7 | Working Temperature | Charge | 0~50℃,45~85%RH | Temperature & Humidity Instruments |
Discharge | -20~60℃,45~85%RH | |||
8 | Storage empe ature & Humidity Range | Short: above one month | -20~+55℃,45~85%RH | Temperature & Humidity Instruments |
Medium: above three months | 0~+45℃,45~85%RH | |||
Long:above one year | +5~+30℃,45~85%RH | |||
9 | 30A | Multi-meter | ||
10 | Allowed maximum continuous discharge current | 30A | Multi-meter | |
11 | Allowed maximum reverse charge voltage | NO Allowed | / | |
12 | Allowed maximum charge voltag
| 58.4±0.2V | Multi-meter | |
13 | Discharge cut-off voltage | 40±1V | Multi-meter | |
14 | weight | About:12 KG | electronic scale | |
15 | Balanced function | / | / | |
16 | Communication | Host:RS232 / Slave:RS485 | / | |
Design, research, customized energy solutions, trial production and mass production
Quality certification:
ISO9001/ OHSA18001/ ISO14001/ TS16949/ HSPMQC080000/ UL/ CE/ CB/ UN38.3/IEC
One stop before sales servie & after sales service & technical support;
Quick delivery: 2~3weeks for samples, 4~6weeks for mass production;
Warranty: 2-year full service since shipping.
Shenzhen Topband Co., Ltd. was registered in so called “China Silicon Valley”, Shenzhen Hi-tech Industrial Park in 1996, and got listed in Shenzhen Stock Exchange ( the stock code as 002139) in 2007.
After years of rapid development, now Topband takes lithium battery as the core technology and has become one of the leading suppliers of lithium battery solutions in China, focusing on nano lithium iron phosphate/ LiFePO4 technology for EV, RV/ caravan, marine, motorcycle, golf cart / trolly, UPS, solar storage, medical, floor scrubber, industrial, commercial use, etc. 
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