Shenzhen BAK Technology Co., Ltd.
Shenzhen BAK Technology Co., Ltd.
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Product Overview
This 21700 3S1P battery pack is built with high-performance 21700 lithium-ion cells, offering 10.8V voltage and 5300mAh capacity. It features excellent energy density and stability, ideal for smart electronics, portable devices, and custom power solutions. Voltage, capacity, and connectors can be tailored to your requirements.
Specification
| Battery Type | Lithium ion (Li Ion) |
| Cell Model | 21700CD |
| Configuration | 3S1P |
| Nominal Voltage | 10.8V |
| Nominal Capacity | 5300mAh |
| Energy | 57.24Wh |
| Charge Voltage | 12.6V |
| Discharge Cut-off Voltage | 7.5V |
| Max Discharge Current | 5.3A |
| Cycle Life | ≥800 Cycles |
| Operating Temperature | -20°C to 60°C |
| Dimensions | 216*25.5*22 mm Max |
| Weight | Approx. 230g |
| BMS Protection | Overcharge, Over-discharge, Short Circuit, Temperature Protection |
Product Features
High energy density and lightweight design make it ideal for space-constrained devices.
Built with A-grade 21700 cells for stable performance and high safety.
Integrated with BMS for overcharge and overdischarge protection.
Fully customizable in voltage, wiring, and connector types.
Application
Suitable for, but not limited to:
Smart terminals & portable security systems
Industrial wireless sensors
Medical portable diagnostics
E-tools and outdoor survey devices
What Makes Us Different
Premium A-grade 21700 cells with rigorous testing ensure reliable and stable battery performance.
Full customization available with no minimum order limits on voltage, capacity, and connectors.
Engineering support and fast prototyping within 3~7 days with technical schematics provided.
Supply & Packaging
Supply Ability: 5000 Units Per Month (Bulk orders available upon request)
Packaging: Standard Export Packaging with Protective Foam & Carton Box
Shipping Options: Air, Sea, and Express Delivery Available
For bulk orders or custom requirements, feel free to contact us!
FAQs
Q1: What devices is this battery compatible with?
A1: This battery is widely used in outdoor surveillance cameras, portable medical devices, industrial terminals, emergency communication equipment, and smart handheld devices.
Q2: Can the voltage, capacity, or connectors be customized?
A2: Yes, we offer customization services for voltage, current, capacity, dimensions, BMS functions (such as communication protocols), and more.
Q3: How should this battery be charged? Is a specific charger required?
A3: It is recommended to use a smart charger compatible with 10.8V lithium batteries, with a charging current not exceeding 2A, to ensure safety and prolong battery life.
Q4: Does the battery have overcharge, over-discharge, short circuit, and other protection features?
A4: Yes, it has a built-in BMS (Battery Management System) that provides overcharge, over-discharge, overcurrent, short circuit, and other protections to ensure safe usage.
Q5: How can I get technical support or after-sales service?
A5: You can contact us through our official website, customer service email, or phone. We will provide professional technical support and after-sales service.