JPBel, again, in a proper charger even old worn batteries will never over-charge as has been seen in this version 7.1.
Did you read HKJ test/review?
http://budgetlightforum.com/node/37872 This version 7.1 will not terminate. In testing it charged a battery to
4.38 volt and would have continued if it was allowed to. Others have now confirmed that their ML-102 v7.1 also never terminate. No old batteries were even used in the tests. Post over there. Your missing the point and will just confuse fasttech customers.
Yes, an old battery may never stop charging because its self discharge is high enough that its voltage never reaches 4.2 (and the charge current also doesn't drop). This is
not what we are talking about in these tests.
I am Not a FastTech staff member.