Quote:
Originally Posted by BrianG
That's one of the reasons why I never cared for balance chargers and prefer an external balancer of my choice. Maybe less convenient, but more versatile IMO. And yeah, you don't get the cell reading right on the charger's LCD screen, but a multimeter is more accurate and consistent anyway.
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Built-in balancer is a must IMO, for safety. Say a cell in a 6S pack gets weak, it could be charged over 4.9V while all other 5 cells are just 4.05V, total pack voltage is still within 25.2V limit. this is extremely dangerous.
With a charger having built-in balancer, it knows each cell's realtime voltage, and will slow down if any of the cells reaches 4.2V. With an external balancer, it has no way to chat with the charger and will leave the pack unprotected.