Amazon· Power & batteries
4PCS 4S 40A Li-ion Lithium Battery BMS Protection Board with Balance Charger 14.8V/16.8V PCB Module Featuring Over-Current and Temperature Protection for Drill Motors and Power Tools
€9.41
Price summary
Listed by Amazon at €9.41. Delivered to France, including shipping, VAT and any customs duty, it comes to about €29.29. Prices last checked on 2026-08-23.
Delivered cost is an estimate for a single item shipped to mainland France; the seller's checkout is authoritative.
Marketplace listing: this item is sold by an individual or a third-party shop, not by the platform. Condition, stock and lead times are the seller's, and the listing disappears once the item is sold.
In stock — 11 units★ 4.9 (0 reviews)
Estimated landed cost
| Item | €9.41 |
|---|---|
| Shipping | €15.00 |
| VAT (20%) | €4.88 |
| Total delivered | €29.29 |
Estimate for a single item delivered to mainland France, shipped from outside the EU: customs duty and clearance fees may apply and are charged by the carrier.
Description
Built-in protection:The 4S 40A lithium battery protection board has three layers of protection device, with over-discharge/over-current/overcharge protection, so that the drilling rig and motorcycle battery can operate within the peak voltage range Efficient power management:This BMS PCB module is designed with high-precision voltage detection circuitry and MOS transistor control to maintain a stable 16.8V output and low standby power consumption Compact Heavy-Duty Design:Precision welding technology provides a stable connection for 4 strings of protective plates, supporting 135W power tools and polymer lithium batteries (18650/26650) in space-constrained installations. Smart Balance Charging Technology:The 16.8V charging circuit automatically monitors 4 lithium battery packs, optimizing performance across charge-discharge cycles. Multi-Application Compatibility:Compatible with electric drills (≤80A starting current) and motorcycle batteries, Support 3.7V/4.2V lithium-ion battery
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