Advanced Rectangle 4S 14.8V 15A Lithium Battery BMS with Balancing Function

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Shenzhen BAK Technology Co., Ltd.

City: shenzhen

Province/State:guangdong

Country/Region:china

Tel:86--13828713564

Contact Person:
Ms.Dong View Contact Details

Advanced Rectangle 4S 14.8V 15A Lithium Battery BMS with Balancing Function

Brand Name	BAKTH / Neutral / OEM
Model Number	ITL0040150008-01
Certification	IEC62133
Place of Origin	Dongguan China
Minimum Order Quantity	2 Piece
Price	USD 10-15 /PC
Payment Terms	T/T
Supply Ability	10000PCS/Month
Delivery Time	3-4 weeks
Packaging Details	Industrial Paper Carton
Type	4S lithium battery protection board
Compatible interface	SMBUS
Battery Type	Li-ION
Over charge detection voltage(Cell)	4.250V±0.050V Adjustable
Over Discharge Detection Voltage(Cell)	2.500V±0.050V Adjustable
Over Current Discharge	20.0A±1.0A Adjustable
Over Current Charge	10.0A±0.5A Adjustable
Max.Discharge Current	15A
Discharging Temperature	-26~65℃ Adjustable
Charge Temperature	-5~55℃ Adjustable
Dimension	53.5352.5 mm
Sample	Available

Detailed Product Description

Advanced Rectangle 4S 14.8V 15A Lithium Battery BMS with Balancing Function

The ITL0040150008-01 is a high-performance, mid-power protection
board exclusively engineered for 4-cell series (4S) lithium battery
packs—compatible with Li-ion, Li-polymer, and LiFePO4
chemistries—with a maximum discharge current of 15A. Tailored for
medium-voltage (nominal 14.8V for Li-ion, 12.8V for LiFePO4) and
moderate-to-high load applications, it balances robust safety
controls with responsive 15A current handling, making it ideal for
mid-power electric tools, recreational gear, and compact energy
storage units.

4S-Specific Protection & 15A High-Current Safeguards
Calibrated to address the unique dynamics of 4-cell configurations,
the board delivers targeted protection aligned with 4S voltage
profiles and 15A discharge demands:
Overcharge Protection: Triggers at 4.25V (Li-ion) per cell (total 17.0V for 4S packs),
instantly cutting charging current to prevent cell swelling,
electrolyte breakdown, or thermal runaway—critical for 4S systems
where voltage imbalance across four cells amplifies performance
degradation risks.
Undervoltage Protection: Shuts down discharge at 2.5V (Li-ion) per cell (total 10.0V for
4S packs), avoiding irreversible capacity loss from "weak cells"
that compromise stability during 15A high-load operation (e.g.,
electric tool startup).
15A Overcurrent & Short-Circuit Protection: Blocks currents exceeding 15A (max discharge) or 45A (peak
surge), shielding the 4S pack and connected devices (e.g., cordless
angle grinders, mid-sized drones) from burnout during sustained use
or accidental short circuits.
4-Cell Active Balancing: Automatically equalizes voltage across all four cells during
charging, eliminating uneven charge distribution—a common issue in
4S packs that reduces runtime and lifespan. This feature extends
battery life by up to 35% compared to unbalanced systems and
maintains consistent 15A discharge performance.
 
Ideal Application Scenarios​
This board is tailored for 4S lithium devices requiring 15A peak
discharge:​
Mid-Power Tools: 4S cordless drills, small angle grinders, or handheld vacuums
(14.8V Li-ion systems);​
Recreational Gear: 4S mid-sized drones (for extended flight time), RC cars/boats
(high-torque performance), or electric skateboards;​
Portable Energy: 4S compact power stations (for charging laptops or small
appliances) or camping LED work lights;​
Industrial Aids: 4S IoT sensor arrays (moderate-power long-range transmitters) or
portable medical devices (e.g., small oxygen concentrators).

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.

Product Tags: Rectangle 4S lithium battery BMS 14.8V 15A BMS with balancing Lithium battery BMS balancing function

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