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This would only work for 1-cell battery.
Hi ! I understand you use a lithium battery charger for the 3 cells, but doesn't it need to be balanced also like this one (http://www.ebay.com/itm/Brand-New-7-4-11-1v-Lithiu... )Or charging at constant intensity and then voltage is correctly managed by the protection circuit ?
Hello ! I was wondering why the charging circuit you're proposing isn't a balanced charger ? does the protection circuit balance the charge to be sure they're at the same level , or the fact that we connect identical batteries at the same level makes this useless ?