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Description:
The 2S 20A BMS PCB is a high-performance protection board designed for 18650 lithium battery packs. It ensures balanced charging, overcharge, and over-discharge protection while supporting high-current devices like power drills and resistive loads up to 168W. With two versions available — standard and balanced — it offers flexibility based on your application needs.
The balanced version is perfect for users who need equal voltage distribution across cells, extending battery life and performance. Make sure to connect the battery strictly according to the wiring diagram and charge it before the first use.
FAQ:
Q1: What type of batteries is this BMS compatible with?
A1: It works with 3.2V, 3.6V, and 3.7V lithium batteries, including 18650, 26650, and polymer lithium cells.
Q2: What’s the difference between the standard and balanced versions?
A2: The balanced version ensures equal voltage across battery cells during charging, improving overall performance and longevity.
Q3: How much current does this BMS support?
A3: It supports a 20A continuous discharge current and a 10A continuous charge current.
Q4: What’s the size of the protection board?
A4: The standard version measures 45 x 15 x 3.4mm, while the balanced version is 48 x 20 x 3.4mm.
Q5: Why is the resistance heating up during charging?
A5: This is normal and indicates that the balancing circuit is active and working properly.
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