Combined 18650 lithium battery packs, suitable for backup power supplies.

18650 Lithium Cell Combined Battery Pack, High Capacity Rechargeable Lithium Battery for Portable Emergency Backup Power Supply.

Product Introduction

Our 18650 combined lithium battery packs are professional power core solutions customized for portable backup power systems. Assembled by high-quality cylindrical 18650 lithium cells in series & parallel configuration, this battery pack provides stable, long-lasting power output for emergency standby power, camping portable power stations, home off-grid backup power and outdoor mobile power supplies.

Core Product Advantages

1. Reliable 18650 Cell Performance
We adopt grade A 18650 lithium cells with low internal resistance, supporting continuous large current discharge. Up to 1000+ charge-discharge cycles, effectively extending the service life of your finished backup power products and reducing after-sales failure rate.

2. Customizable Combination Solution
Flexible series-parallel assembly design to adjust voltage (12V/16.8V/24V etc.) and total capacity according to your equipment requirements. We can customize wire length, connector type, shell packaging and printed brand labels for your OEM orders.

3. Multi-layer Safety Protection System
Built-in integrated BMS protection board to prevent overcharge, over-discharge, over-current and short circuit. Effectively avoid battery swelling, overheating and safety hazards during long-time standby operation of backup power.

4. Complete Export Certifications
All 18650 battery packs pass UN38.3 transportation test, MSDS, RoHS standards. We provide full set of shipping documents to support smooth sea & air customs clearance for global bulk export.

Wide Application Scenarios

Perfectly matched with all types of backup power finished goods:

• Outdoor camping portable power stations

• Household emergency standby power supply

• Off-grid solar backup power storage equipment

• Mobile portable emergency power for construction & field work

Our Service for B2B Buyers

• Flexible MOQ: Small trial order support for new brand prototype testing

• One-stop OEM & ODM customization (cell combination, wiring, packaging, logo printing)

• Strict capacity sorting & aging test before delivery to guarantee consistent batch performance

• Professional engineering team to provide technical drawing support within 24 hours