Name: 1S 2S 3S 4S 3A 20A 30A Liion Lithium Battery 18650 Charger PCB BMS Protection Board for Drill Motor Lipo Cell Module
Brand: BAKTH / Neutral / OEM
Price: 9 USD

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1S 2S 3S 4S 3A 20A 30A Li-ion Lithium Battery 18650 Charger PCB BMS Protection Board for Drill Motor Lipo Cell Module

Brand Name:BAKTH / Neutral / OEM

Certification:IEC62133

Model Number:BAKTH-003S010A-0027-01

Minimum Order Quantity:2 Piece

Delivery Time:3-4 weeks

Payment Terms:T/T

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Shenzhen BAK Technology Co., Ltd.

Verified Supplier

Location: Shenzhen Guangdong China

Address: RM 2201, Longshenghengbo Center, Jianshe East Road and Bulong Road Intersection, Longhua District, Shenzhen, Guangdong, China

Supplier`s last login times: within 22 hours

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Product Details Company Profile

Product Details

1S 2S 3S 4S 3A 20A 30A Li-ion Lithium Battery 18650 Charger PCB BMS Protection Board for Drill Motor Lipo Cell Module

The 3S Lithium Battery Protection Board is a critical safety and
performance component engineered exclusively for 3-cell series (3S)
lithium battery packs, including Li-ion, Li-polymer, and LiFePO4
configurations. Designed to prevent battery damage and mitigate
safety risks, this board acts as a “guardian” for 3S battery
systems, ensuring stable operation and extending the lifespan of
connected battery packs—making it essential for consumer
electronics, industrial devices, and portable power solutions.

Core Protection Functions for 3S Battery Packs
Tailored to 3S battery packs (typical nominal voltage: 11.1V for
Li-ion, 9.6V for LiFePO4), this board delivers multi-layered
safeguards:
Overcharge Protection: Triggers when any cell voltage exceeds 4.25V (Li-ion) or 3.65V
(LiFePO4), cutting off charging current to avoid cell swelling or
thermal runaway.
Undervoltage Protection: Shuts down discharge when a cell drops below 2.5V (Li-ion) or
2.0V (LiFePO4), preventing irreversible battery capacity loss.
Overcurrent & Short-Circuit Protection: Instantly blocks high currents caused by short circuits or
overloads (e.g., faulty devices), protecting both the battery and
connected equipment.
Cell Balancing: Automatically equalizes voltage across the 3 cells during
charging, ensuring each cell charges uniformly—eliminating “weak
cell” issues that reduce overall battery capacity and lifespan.

High Precision & Low Power Consumption
Equipped with high-sensitivity voltage detection chips, the board
monitors each cell’s voltage with a precision of ±2mV, ensuring
timely and accurate protection responses. Its ultra-low static
current (<10μA) minimizes power drain when the battery pack is
idle, preventing unnecessary capacity loss during storage or
non-use. The board also features a fast recovery function: once the
fault condition (e.g., overcurrent) is resolved, it resumes normal
operation without manual reset—enhancing user convenience.

Wide Compatibility & Durable Design
This protection board supports 3S battery packs with capacities
ranging from 1000mAh to 20000mAh, making it versatile for diverse
applications. It is compatible with common lithium battery
chemistries (Li-ion, Li-polymer, LiFePO4) and works seamlessly with
standard chargers and discharge devices. Constructed with a
flame-retardant PCB board and high-quality electronic components,
it resists high temperatures (operating range: -20°C to 85°C) and
mechanical stress, ensuring reliability in harsh environments
(e.g., outdoor tools, industrial sensors).

Versatile Application Scenarios
Ideal for any 3S lithium battery-powered device, including:
Consumer electronics: 3S drone batteries, portable power banks, and
high-power LED flashlights;
Industrial equipment: 3S electric tools (e.g., cordless drills),
IoT sensor batteries, and small medical devices;
Recreational gear: 3S e-scooter auxiliary batteries, camping
lanterns, and RC toy power packs.

About Us

Shenzhen BAKTH Technology Co., Ltd. was established in 2002. For 21 years, we've specialized in battery pack assembly and PCM/BMS design and production. Our 5,000-square-meter factory features automated production lines and SMT assembly capabilities.

Certifications

FAQ

What kind of certificate your battery pack owned?

ISO9001, ISO14001, UL, BIS, KC, USTC, CE, CB - our battery packs have reliable quality assurance.

Do you have MOQ?

No limitation - we offer competitive pricing based on order quantity. Sample orders are welcome to test our quality before bulk orders.

What's the warranty? How can we guarantee quality?

Standard warranty is 12 months (negotiable for special products). Our complete production process ensures quality before shipment.

What's the lead time?

Standard products: 3-4 weeks for samples (depending on cell availability), 5-8 weeks for bulk orders (varies by model and quantity).

Can we have our own Logo on the battery pack? Can you accept customized battery?

Yes - our professional R&D team can provide customized solutions according to your requirements.

Company Profile

Shenzhen BAK Technology Co., Ltd. founded in 2002, with more than 22 years experience in design and production of battery packs and PCB/BMS. BAKTH has its own R&D team, advance production & testing facilities. A fully automatic SMT line was introduced in 2021, further enhanced BAKTH production capacity while achieving higher safety and reliability performance of our products. Today, our sales network now spans the globe, delivering premium-quality products and tailored solutions to our clients.

Who we are
BAKTH, a professional energy provider, delivers safe and reliable electrical energy to customers worldwide.

As an ISO 9001 & 14001 certified enterprise, “Quality above all” is our mission, we desgin our products according to national and international standards, such as UL, CE, UKCA, KC, BIS, CCC etc... We provide both of standard and custom battery pack to customers as well as BMS solutions.

Standard battery packs
Our battery pack and PCM/BMS solutions have been widely adopted across multiple sectors, such as consumer electronics, medical dev ices, ESS and industrial equipment etc... Our sales philosophy is to "give priority to recommending standard products to customer" to reduce R&D costs for them.

Customized batteries
Customized product development is another area where we excel, our engineering teams conduct end-to-end optimization from the design phase onwards, embedding reliability and cost-efficiency into every product while ensuring safety compliance.

1S 2S 3S 4S 3A 20A 30A Li-ion Lithium Battery 18650 Charger PCB BMS Protection Board for Drill Motor Lipo Cell Module

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