3.7V 290Mah Lithium Ion Polymer Power Bank Lipo Battery For Power Bank
| Attribute | Value |
|---|---|
| Type | Li-polymer |
| Size | 4.5*30.5*48.5 (mm)Max |
| Max charge voltage | 4.2V |
| Discharge cut off voltage | 2.75V |
| Standard charge current | 0.2C |
| Max charge current | 290mAh |
| Charging mode | CC/CV |
| Charging Temperature | 0~45℃ |
| Discharging Temperature | -20 ~ 60℃ |
| Warranty | 12 Months |
| Port | Shenzhen/Hongkong |
ODM/OEM services available for this 3.7V 290Mah Li-Ion Polymer Rechargeable Battery.
- Top 10 battery supplier in China with competitive pricing
- Comprehensive battery product range available
- Strict quality control processes ensure product reliability
- Additional advantages available upon inquiry
- Professional: 20 years of battery pack design and production experience
- Factory Direct: High-quality product packaging and PCB/BMS solutions
- Quality Certified: ISO 9001 and ISO 14001 certified manufacturing
- Custom Solutions: OEM & ODM services with top 500 enterprise recognition
- Service Excellence: Comprehensive technical and after-sales support
Shenzhen BAK Technology Co Ltd specializes in rechargeable battery pack design and production with 20 years of experience. Our advanced R&D capabilities and production facilities enable us to deliver high-quality battery packs and PCB/BMS solutions worldwide, supported by excellent technical service and after-sales support.
Safety is paramount in battery usage. We use qualified battery cells, full-function PCB/BMS, and maintain strict quality control procedures to ensure reliable products.
Customized batteries including 18650/21700/26650/32700 models, Lifepo4 3.2V-100Ah/150Ah/200Ah/277Ah, and 12.8V100Ah/120Ah/12Ah/6Ah configurations.
Standard 12-month warranty (negotiable for special products). We provide pre-production samples and conduct final inspections before shipment.
No minimum order quantity. Sample orders are welcome to test quality before bulk purchases.
Yes, our professional R&D team can develop solutions according to your requirements, including logo printing.
Sample orders: 1-3 weeks. Bulk orders: 4-8 weeks depending on model and quantity.
Options include express (1-2 weeks), air (2-3 weeks), sea (20-60 days), or train (30-45 days). Customer shipping agents are acceptable.
We provide tracking numbers upon shipment and monitor production until delivery.
Contact us for current pricing, packaging options, shipping details, discounts, and customized battery solutions.
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.