Storing small batteries in the fridge.

softdown
softdown Solar Expert Posts: 3,925 ✭✭✭✭
in Off Grid Solar & Battery Systems #1
Thought I found a needed CR2 battery in my fridge stored battery assortment. Exp date was 2010 for a 3 volt lithium battery. With a temp of 38F it measured 3.32 volts in spite of likely being well over 15 years old. Pretty impressive.

Though part of the secret of lithium battery longevity is juicing up the voltage from the factory. A lithium AA or AAA will measure around 1.75 volts instead of 1.55 volts. Which can also be a problem when using several such batteries in one device. Some will not work due to over voltage conditions.
First Bank:16 180 watt Grape Solar with  FM80 controller and 3648 Inverter....Fullriver 8D AGM solar batteries. Second Bank/MacGyver Special: 10 165(?) watt BP Solar with Renogy MPPT 40A controller/ and Xantrex C-35 PWM controller/ and Morningstar PWM controller...Cotek 24V PSW inverter....forklift and diesel locomotive batteries
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