Comidox 3S 12V 10A 18650 Lithium Battery Protection Board BMS Li-ion Charger Protection Module Anti-Overcharge/Over-Discharge/Over-Current/Short Circuit 3Pcs

Comidox 3S 12V 10A 18650 Lithium Battery Protection Board BMS Li-ion Charger Protection Module Anti-Overcharge/Over-Discharge/Over-Current/Short Circuit 3Pcs

Q: Will this bms work with a 3s5p 18650 battery pack?

it should work, but it sounds like you might want to be drawing significant amperage, and these will limit you to 10 amps, you should try not to need more than 5 amps through these if it is continuous current. if you are going to do this with these BMS , you will want to make sure the batteries all perform nearly identically, because charging will stop when one of the sets of 5p reaches 4.2v, so if one cell out of those 5 charged to 4.2v while the other 4 are still down at 3.9v, you will never get maximum potential out of the 4 cells, because they will all stop charging every time. if this offset becomes large enough, you could have one cell charging the other cells "balancing" to have the same voltage, this could produce more problems down the road after several cycles. i only like to use them with 3 cells in series per BMS. i have considered using 2 or 3 bms in parallel to make a larger bank, but i didn't want to put more than one cell per terminal on the BMS

Q: How would i adjust the voltage for use with 1.5v batteries such as aa or aaas?

It is not the battery form factor that determines the compatibility. It is the chemistry. These will work with 3 rechargeable Lithium Ion or Lithium Polymer batteries (3.7V nominal, 4.2V totally charged) in series. I am using it with 12 cells of 21700 batteries in a 3S4P configuration. A pack of 3 AA or AAA Li-Ion or Li-Po batteries should work just fine.

Q: What is the output voltage and amperage from P+ and P-?

Specifications: 3 strings: 3 18650 batteries or polymer lithium batteries in series Polymer battery rated voltage: 10.8V Rated voltage of 18650 or 3.7V lithium battery: 11.1V After the lithium battery is fully charged, the voltage is 12.6V. Maximum discharge current limit: 10A Overcharge voltage range: 4.25-4.35v±0.05v Over-discharge voltage range: 2.3-3.0v±0.05v Maximum working current: 5-8A Maximum instantaneous current: 9-10A Quiescent current: less than 6uA Internal resistance: less than 60mΩ Working temperature: -40---+50 °C Storage conditions: -40-- +80 ° C Effective life: more than 30,000 hours

Q: Is there a minimum output to keep these alive? my application only draws about 60ma. some bms units require more.

I drew 40 mA, and it shut off to protect the batteries exactly as it was supposed to.

Product ID: 439881129

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Details

Brand
Comidox
Colour
Black Blue
Product dimensions
5D x 15W x 10H
Output voltage
11.1 Volts
Input voltage
12 Volts

⚡10A max discharge current for power-hungry devices

🔋12V max voltage for versatile use

🛡️Multi-layer protection: overcharge, discharge, short circuit

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Description

🛠️ Power your passion with precision and protection!

BUILT TO ENDURE - Operates flawlessly from -40°C to +50°C with a lifespan exceeding 30,000 hours—engineered for the relentless pace of modern life.
ROBUST SAFETY SHIELD - Advanced MOSFET tech ensures ironclad protection against overcharge, over-discharge, over-current, and short circuits—keeping your battery and gear safe.
COMPACT EFFICIENT DESIGN - Slim 50x16mm footprint fits effortlessly into tight spaces without compromising performance or reliability.
POWER PACKED COMPATIBILITY - Seamlessly supports 3-series 18650 or polymer lithium batteries up to 12.6V, perfect for your smart devices and backup systems.
ULTRA LOW QUIESCENT CURRENT - Consumes less than 6μA in standby, maximizing battery life and efficiency for long-term projects.

The Comidox 3S 12V 10A Lithium Battery Protection Board is a compact, high-performance BMS module designed for 3-series 18650 or polymer lithium batteries. It delivers up to 10A discharge current with comprehensive safeguards against overcharge, over-discharge, over-current, and short circuits. Featuring premium MOSFET components and ultra-low quiescent current, it ensures reliable, long-lasting battery management across a wide temperature range, ideal for vacuum cleaners, LED backup lights, solar street lamps, and more.

Have a Question? See What Others Asked

Will this bms work with a 3s5p 18650 battery pack?

How would i adjust the voltage for use with 1.5v batteries such as aa or aaas?

What is the output voltage and amperage from P+ and P-?

Is there a minimum output to keep these alive? my application only draws about 60ma. some bms units require more.

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