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Author Topic: M240 Solar charge battery anyone?  (Read 3205 times)

Offline jingwei3344

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  • Posts: 53
M240 Solar charge battery anyone?
« on: August 21, 2015, 10:45:58 AM »
Hi, I'm headed out to a 10 day long trip later this summer where I won't be able to charge my M240 battery using usual methods - I won't have access to external power sources at all. I will take some spare batteries  but it would be tragic if I ran out of juice.
The standard charger does have a 12 v car adapter socket, I wondered if anyone has successfully used a solar charger for this?

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M240 Solar charge battery anyone?
« on: August 21, 2015, 10:45:58 AM »

Offline MarkE

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Re: M240 Solar charge battery anyone?
« Reply #1 on: August 21, 2015, 12:45:30 PM »
If you are referring to a Leica camera battery, then if you build or buy an appropriate CI/CV circuit, you could use any of the Goal Zero or similar solar panels to charge it. The M240 current limit should be set to 1.8A maximum.  A lower value will work, but will of course take longer to charge.  The voltage limit should be set to 8.4V.