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⚡️ anmbest 4s 16.8v 40a li-ion battery charger pcb bms protection board with balancer for drill motor logo

⚡️ Anmbest 4S 16.8V 40A Li-ion Battery Charger PCB BMS Protection Board with Balancer for Drill Motor Review

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Average

Revainrating 3.5 out of 5  
Rating 
3.3
🔌 Household Battery Chargers, 🧻 Household Supplies

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Description of ⚡️ Anmbest 4S 16.8V 40A Li-ion Battery Charger PCB BMS Protection Board with Balancer for Drill Motor

High-accuracy voltage detection circuit, fine workmanship and durable. Highlight: Over-discharge protection, overcurrent protection, overcharge protection; High charge and discharge current; Compact size and lightweight. Conditions for Starting the Drill: To successful starting the drill requires three 15C-20C power batteries, or six 10C-15C power batteries (ordinary 18650 battery can not start the drill!! Recommended power battery models: SONY VTC4, VTC4A, VTC5A, VTC6). For connecting cables, use copper wire over 3 square millimeters, the shorter the better (can not use nickel plate!!!). MOS transistor can control the battery charge and discharge, low standby current consumption. Applications: Suitable for electric drill with starting current below 80A and power below 135W. Suitable for lithium batteries with nominal voltage of 3.7V and full voltage of 4.2V (including 18650, 26650, polymer lithium batteries, no size limit).

Reviews

Global ratings 3
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  • 4
    1
  • 3
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  • 1
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Type of review

Revainrating 5 out of 5

Legit Current And Constant

Full test load 43 amps continuous and holds up like a champ I added a heatsink to the mosfets to keep the temps in check. I will be buying more of these batteries for my other battery builds. The battery I made is a 4S 10P 18650. If you want to run the battery at this high current, you need to connect the wires appropriately to reduce heat from the branches that connect to the batteries. and the output also recommends 10 AWG wire for less voltage drop and less heat. You can use the little tabs…

Pros
  • Conditions to start the drill: To start the drill successfully, three 15C-20C power batteries or six 10C-15C power batteries are required (normal 18650 battery can not start the drill! Recommended battery models : SONY VTC4, VTC4A, VTC5A, VTC6). Use copper wire with a cross-section of more than 3 square millimeters for connecting cables, the shorter the better (no nickel-plated sheet metal!!!).
Cons
  • Cable is shorter than other picks

Revainrating 1 out of 5

🚨 UPDATE 🚨 don't know what to say but mixed results 🤷‍♂️

🚨 UPDATE, 10/01/2020 🚨 Contacted the seller, got a replacement quickly, soldered a new block, when testing with a drill inside and outside of the battery pack, everything worked as it should. put the actual load on the drill today, ie real use, heard a pop in the drill after tightening the screw, the drill stopped working, disassembled the block and found a burned out MOSFET 🤯, I don't know if I'm unlucky with these blocks had or these blocks are designed for The batteries I use but remain…

Pros
  • Highlights: over-discharge protection, over-current protection, over-charge protection; High charging and discharging current; Compact size and light weight.
Cons
  • High price

Revainrating 4 out of 5

So far it's working well enough. MOSFET

First of all, this product really works. However, as another reviewer noted, this BMS doesn't seem to charge a battery above 4.05V. I've had no issues with it in my applications that were designed to replace the standard 12V 12Ah Power Wheel battery. I increased the voltage a bit from 12.8 to 16.2 and used this bms 4s5p which made it a bit faster. But mainly to increase the charging speed from 12 hours to 2 hours. And I was also able to go from 144Wh (7.75lbs) to 208.8Wh (2.2lbs). I was able to

Pros
  • can control battery charging and discharging, low standby power consumption.
Cons
  • Expensive