I'm very satisfied. The batteries come very fast, impressive. Nine batteries have between 8.01 and 8.44 Vcc and one das not receive any current. The last one came with a single light on and after 16 hours on charging it also has a light on. That's it. Anyway, I'm satisfied, it remains to be seen how they will handle the fishing sensors over time. Thanks.
1 out 4 batteries only charged to 4.6 volts others show highest 8.26, 8.20 and 8.18, seller says should be 8.4 volts the 3 batteries seem to be working OK in multimeter and thermal measurement devices. I did order 1 extra battery so I would have a spare but that was not as turned out, seller only offered return all and full refund .