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PCB Circuit Board for Bosch 18V Li-Ion Battery Protection

$17.13 USD

~~$14.96 USD~~ $17.13 USD

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PCB Circuit Board for Bosch 18V Li-Ion Battery – Voltage Detection & Protection

Keep your Bosch 18V lithium-ion battery pack running safely and reliably with this replacement PCB circuit board. Designed for voltage detection and overcharge/over-discharge protection, this board is an essential component for DIYers and professionals looking to repair or restore their Bosch 18V Li-Ion battery packs rather than replacing them entirely.

Made in Mainland China.

Product Specifications

Compatible With: Bosch 18V Li-Ion Battery Packs
Function: Voltage Detection & Protection (overcharge, over-discharge, short circuit)
Color: Blue
Material: Metal / PCB
Accessory Type: Battery Protection Circuit Board

What's in the Box?

1 x PCB Circuit Board (set)

Why Replace Your Battery PCB?

A faulty protection circuit board is one of the most common reasons a Li-Ion battery stops charging or discharging correctly. Instead of discarding an expensive battery pack, swap out the PCB to restore full function. This board provides critical safeguards including:

Overcharge Protection – Prevents cells from being charged beyond safe voltage limits
Over-Discharge Protection – Cuts off power before cells are drained to damaging levels
Short Circuit Protection – Safeguards the battery and your tools from dangerous surges
Voltage Detection – Continuously monitors cell voltage for safe, consistent performance

Important Notes

Color may vary slightly from product images due to lighting and display differences.
Measurement tolerance: ±1–3 cm.
Only the PCB circuit board is included. No charger or battery pack included.
Installation should be performed by someone with electronics repair experience.

Looking for other repair and power tool accessories? Check out our related products:

Automotive Cables & Jump Starters
Smart Relay Switch – 16A WiFi Smart Switch

For more information on lithium-ion battery safety, visit the U.S. Consumer Product Safety Commission or read about battery technology on NCBI – Lithium-Ion Battery Safety Research.

Frequently Asked Questions

Q: Is this PCB circuit board compatible with all Bosch 18V Li-Ion battery models?

A: This PCB circuit board is designed for Bosch 18V Li-Ion battery packs. However, we recommend verifying the exact model and cell configuration of your specific battery before purchasing to ensure compatibility. Check the markings on your existing board for reference.

Q: What does the voltage detection protection circuit do?

A: The voltage detection protection circuit continuously monitors the voltage levels of the battery cells. It prevents overcharging, over-discharging, and short circuits — all of which can permanently damage lithium-ion cells or pose a safety hazard. Replacing a faulty PCB can restore safe and full operation to your battery pack.

Q: Is this easy to install myself?

A: Installing a PCB circuit board requires basic electronics knowledge and soldering skills. If you are comfortable with battery repair and electronics work, this is a straightforward replacement. If you are unsure, we recommend consulting a qualified technician.