All batteries tested were size 312. End of life for tests was 1.0 volts. Battery load was 820 ohms giving a current drain of a nominal 1.5 mA. Batteries tested had “Use By” dates ranging from 3/2010 to 10/2012. Current decrease during test life was compensated for in calculations. Tests were conducted at 70°F ±2°. Test batteries were purchased at Wal-Mart, Localbattery, and Microbattery. Test discharge times ranged from 85 to 111 hours.
Batteries Tested
- Power One 8/11-5328 and 10/11-3428
- iCell Tech 8/11 10A8 2011 and 06 A4 2011
- Rayovac Extra Advanced Jun 2012 IPTPA 22:13
- Rayovac OCT 2012 HP2PA 13:29
- Renata maratone 03-2011 2000391/AO1
- Renata 04-2011 5310253/A05
- Panasonic 08-11 PR-312HEP/6C
- Toshiba 06/2012 0 43297 02666 7
- Energizer 10/2011
- Duracell MAR 2012 8G15J2
- Duracell 09-2012 8228
Test Data Summary
Brand | mAh |
---|---|
Power One 8/11-5328 | 158 mAh |
PowerOne 10/11-3428 | 144 mAh |
iCellTech 10A8 2011 | 141 mAh |
iCellTech 06 A4 2011 | 146 mAh |
Rayovac Extra Adv.PPTPA22:13 | 134 mAh |
Rayovac Oct 2012 HP2PA 13:29 | 170 mAh |
Renata maratone 03-2011 5310253A05 | 20mAh |
Renata 4/11 lot 85618-41299 | 131 mAh |
Panasonic 08-11 PR-312HEP/6C | 151 mAh |
Panasonic 08-11 PR-312HEP6C | 149 mAh |
Toshiba 06/2012 0 43297 02666 7 | 137 mAh |
Toshiba, 2nd sample same lot | 129 mAh |
Energizer 10/2011 | 149 mAh |
Energizer 2nd sample same lot | 132 mAh |
Duracell MAR 2012 8G1512 | 149 mAh |
Duracell 09-2012 8228 | 138 mAh |