Just about the worst NiMH batteries ever made. If it says BTY on it, I don’t want it.
I’d forgotten about the Panasonics again so all 8 of the are getting an 18 week discharge before they join the general use population. I’ve not looked at the Camelion cells in ages either and they’ve not been use so time to play hunt the spreadsheet with their data on it.Found it! The Camelions were last charged a year ago today so I’ll discharge them next.
Results in a few hours.
Here are the numbers after eighteen weeks of storage. Not bad numbers but the Camelions were better. Now about to find out how they have fared after 365 days of storage. These cells have only nine cycles on them. They’ll do fine for general usage in anything I have. I have no really heavy draw devices that use AAs - I think the highest I have is around three amps.
Average Discharge 18 weeks
Cell 6 cycles mAh %Remaining
1 2084 1606 77.08
2 2069 1611 77.88
3 2060 1603 77.80
4 2039 1578 77.38
5 2063 1659 80.43
6 2049 1655 80.77
7 2069 1658 80.14
8 2026 1608 79.36
I'd put them on discharge before I remembered to check the voltage so no voltage data on the last discharge. Cycle 2 data was discarded because of an anomaly.
| Panasonic Evolta AA NiMH | |||||||||
| All Discharges at 500mA, Charges at 2000mA. Discharge to 1V. | |||||||||
| Initial Voltage | Initial capacity | Capacity | Average | ||||||
| Cell | V | mAh | Cycle 1 | Cycle 3 | Cycle 4 | Cycle 5 | Cycle 6 | Cycle 7 | 6 cycles |
| 1 | 1.285 | 1592 | 2067 | 2010 | 2080 | 2119 | 2081 | 2144 | 2084 |
| 2 | 1.284 | 1608 | 2062 | 2006 | 2056 | 2102 | 2061 | 2124 | 2069 |
| 3 | 1.282 | 1579 | 2055 | 2003 | 2048 | 2082 | 2054 | 2120 | 2060 |
| 4 | 1.284 | 1526 | 2024 | 1977 | 2029 | 2068 | 2040 | 2098 | 2039 |
| 5 | 1.284 | 1584 | 2081 | 2048 | 2102 | 2018 | 2104 | 2023 | 2063 |
| 6 | 1.286 | 1636 | 2081 | 2047 | 2084 | 2001 | 2086 | 1995 | 2049 |
| 7 | 1.286 | 1671 | 2092 | 2067 | 2103 | 2018 | 2104 | 2030 | 2069 |
| 8 | 1.284 | 1620 | 2014 | 2018 | 2076 | 1996 | 2077 | 1977 | 2026 |
This seems to be the old handloader delema! I handload so I can shoot, I shoot so I can handload. I charge batteries to run my flashlights, I run flashlights so I can charge my batteries! :bigsmile: