Two Pack Heavy Duty Three Series Lithium Ion Protection Board For 11.1 To 12.6 Volt Packs Pushing 25 Amp Draw Smooth Balance Charging Rock Solid Safety Shield Built Tough For 18650 Custom Power Builds

Custom built three series lithium ion protection module pair
✔️ Dual 3S lithium controller shields 12v packs under 25a draw

This is a dual-pack battery management board designed to balance and protect stacks of three series lithium ion cells. You typically install it inside custom power banks, electric bike mods, or drone battery enclosures where consistent charging and discharge cycles matter. The module cuts off power when cells hit critical thresholds to prevent swelling or fire hazards.

✅ Handles twenty five amp continuous load with forty amp spike tolerance
✅ Cuts off charge above four point three volts to protect individual cells
✅ Stops discharge below three volts to keep capacity intact
✅ Features delayed short circuit recovery for reliable field operation
✅ Slim fifty six by forty five millimeter profile fits tight custom enclosures easily

💡 How does a dedicated balance management circuit extend the lifespan of custom three series lithium packs?
A solid protection board locks in performance by keeping every cell matched during heavy loads. This handy setup prevents dangerous voltage spikes and keeps your energy store reliable.
- Regular voltage monitoring stops gradual capacity loss over time.
- Automatic fault detection avoids costly replacements down the road.
- Steady current regulation maintains peak efficiency during rapid discharge events.