Four of these batteries are installed in a Sangean BB-100 radio. There aren't any diagnostics, but the radio runs about 10 days on a charge, with about 6 hours use per day. Seems pretty good. The BB-100 has a built-in charger. Batteries have been through about six charge cycles. Consistent so far.
Verified purchase: Yes | Condition: New
Took forever for them t charge, but have lasted a long time thus far. it took 7 hours to charge. I would buy them again if needed.
Verified purchase: Yes | Condition: New
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