BMS Charging Protection Board 5S 18V 21V 20A Li-Ion Battery Module PCB for Power Tools Screwdriver Drill Overcharge and Short Circuit Protection
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BMS Charging Protection Board 5S 18V 21V 20A Li-Ion Battery Module PCB for Power Tools Screwdriver Drill Overcharge and Short Circuit Protection
This protective BMS board is designed for 5S lithium batteries with an operating voltage of 18 V and a charging voltage of 21–24 V. It uses a special integrated circuit that monitors voltage, charging and discharging current, and ambient temperature of the cells in real-time. This ensures stable and safe protection against overcharging, excessive discharging, and short circuits, prolonging battery life and increasing safety during use.
The module is ideal for power tools, cordless drills, screwdrivers, and other devices that operate at 21 V. Its low energy consumption results in an operating current of approximately 25 µA and a standby current of only 6 µA, ensuring efficient operation and minimal losses. With compact dimensions of 46 × 40 × 3.6 mm, it easily fits into various battery assemblies.
- Compatible with 5S Li-ion batteries (18V/21V) – suitable for a wide range of applications
- Maximum discharge current up to 20 A – stable performance for demanding applications
- Protection against overcharging, excessive discharging, and short circuits – enhanced battery safety
- Low energy consumption (25 µA operating, 6 µA standby current) – economical operation
- Waterproof and moisture-resistant protective coating – reliability in various conditions
- Package contents: 1× BMS charging protection board 5S 20A
This module is an essential accessory for anyone looking to extend the life of their batteries and ensure their safe use. With its durable construction and multi-level protection, it is suitable for both professional use in power tools and for home and DIY projects.
If you are looking for an effective and reliable solution for managing and protecting lithium batteries, this BMS board is the ideal choice. It allows for safe operation, reliable charging, and provides the necessary protection that safeguards both the batteries and the devices into which they are installed.
Seller: Largon
Dispatched within 1 working day (Mon–Fri) – orders paid for by 14:00 Irish time are processed on the same working day.
Availability: In stock
Transit: 5–13 working days – transit takes place on working days (Mon–Fri).
In total, please allow 5–14 working days from payment of your order.
Delivery is only possible to addresses in Ireland.
Delivery to address: €1.59
Returns
Deadline: 30 days from receipt of the goods, without giving any reason
How: notify us of your withdrawal at info@lunzo.ie and send the goods by post to the returns address:
Rotonda Rene Descartes, Parcela 101 – Nave 3
28070 Alcala de Henares, Madrid
Spain
Once you have sent the parcel, send us the proof of dispatch with the tracking number to info@lunzo.ie – this lets us process your return as quickly as possible and refund you without waiting for the parcel to arrive.
Product condition: you can also return goods that have been used or unpacked, or that no longer have their original packaging or tags
Costs: you pay the postage for sending the goods back to Spain; we charge no return fee
Refund: within 14 days of receiving your notice of withdrawal; we may withhold the refund until the goods have arrived back or until you provide proof that you have sent them
Exchanges
Deadline: 30 days from receiving your parcel (exchange for a different size, colour or variant)
How: write to us at info@lunzo.ie, giving your order number and the variant you want – once we have checked that it is available, we will send you instructions for the exchange, including the address to which you should send the original item
Costs: you pay to send the original item back; the new variant will be sent to you at no further charge
Faulty or damaged goods
Period for claiming a fault: up to six years from delivery of the goods – within the first 30 days you can reject a faulty product and ask for a full refund, and for the first 12 months a fault is presumed to have been present on delivery
How: write to us at info@lunzo.ie and attach a photograph or a video of the goods – in most cases you do not have to send the goods back
Remedies: a replacement with a new item, a reasonable price reduction, or a refund of the full purchase price
You will find the details in Delivery and Payment, Returns and Exchanges, Faulty Goods.
Seller:
Jinbao Tengda Mechanical Equipment (Tianjin) Co., Ltd.
Address: No.76, District 3, Zhenbei Village, Xinkou Town, Baodi District, Tianjin, China
E-mail: 728123120@qq.com
Telephone: +86 187 6653 7872
Manufacturer:
Jinbao Tengda Mechanical Equipment (Tianjin) Co., Ltd.
Address: No.76, District 3, Zhenbei Village, Xinkou Town, Baodi District, Tianjin, China
E-mail: 728123120@qq.com
Telephone: +86 187 6653 7872
EU responsible person:
MACYSAN ADVISORS SL
Address: Calle Benito Pérez Galdós, 4, 03201 Elche, Alicante, Spain
E-mail: macysanadvisors@gmail.com
Telephone: +34 653 13 94 97