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Old 15th January 2019, 09:27   #11
MSS
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Rover 75CDT, Jaguar XF-S 3.0V6, V'xhall Omega V6 Estate, Twintop 1.8VVT, Astra Estate and Corsa 1.2

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Quote:
Originally Posted by gadget1960 View Post
...............


What the amps have to be to successfully trickle charge a 12v car battery is a mystery to me so far so research continues.

The OP's charger is a 6W unit. Let's assume that daylight lasts for 6 hours each day with an equivalent minimum 50% duty cycle, this would mean an average output of about 800mW or 60-70mA. This is sufficient to offset the normal long-term drain on our cars and battery losses in order to keep the battery topped up provided it was fully charged in the first place.
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