3S 8A 11.1V Lithium Battery Charger Protection Board Module for
3PCS 18650 Li-ion Battery Cell Charging BMS 10.8V 12V 12.6V
The ITL0030100039-01 is a precision-engineered protection board
designed exclusively for 3-cell series (3S) lithium battery
packs—supporting Li-ion, Li-polymer, and LiFePO4 chemistries—with a
maximum discharge current of 8A. Tailored for low-to-medium power,
mid-voltage applications (nominal 11.1V for Li-ion), it balances
reliable safety safeguards with efficient current handling, making
it ideal for consumer electronics, small IoT devices, and
light-duty portable tools.
3S-Specific Protection & 8A Current Safeguards
Calibrated to address the unique needs of 3-cell configurations,
the board delivers targeted protection optimized for 3S voltage
dynamics and 8A discharge demands:
- Overcharge Protection: Triggers at 4.23V (Li-ion) per cell (total 12.7V for 3S packs),
cutting off charging current to prevent cell swelling or thermal
runaway—critical for 3S systems where voltage imbalance between
three cells can accelerate degradation.
- Undervoltage Protection: Shuts down discharge at 2.8V (Li-ion) per cell (total 8.4V for 3S
packs), avoiding irreversible capacity loss from "weak cells" that
often affect multi-cell packs during sustained 8A operation.
- 8A Overcurrent & Short-Circuit Protection: Blocks currents exceeding 8A (max discharge) or 24A (peak surge),
shielding the 3S pack and connected devices (e.g., small LED work
lights, portable sensors) from burnout during startup or continuous
use.
- 3-Cell Balancing: Automatically equalizes voltage across all three cells during
charging, eliminating uneven charge distribution—a common issue in
3S packs. This extends battery lifespan by up to 25% vs. unbalanced
systems and maintains steady 8A discharge performance.
Ideal Application Scenarios
This board is tailored for 3S lithium devices requiring 8A peak
discharge:
- Consumer Electronics: 3S portable speakers, handheld game consoles, or small power
banks.
- Light-Duty Tools: 3S cordless mini-drills, LED work lights, or handheld vacuums.
- IoT & Sensors: 3S Bluetooth beacons, environmental monitors, or asset trackers.
- Recreational Gear: 3S RC toys (small cars, drones) or camping lanterns.
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.
