echristley(at)att.net
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 Posted: Thu Jun 04, 2020 11:07 am Post subject: LiFePo compatible trickle charger |
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I had been looking for a trickle charger to keep my LiFePo battery alive, and even top it off. N167EZ is living on the ramp right now, so I don't have access to an outlet. Most of the solar trickle chargers I was able to find would generate a max voltage of over 18V, and that will kill the battery maintainence system (BMS) in a LiFePo. I finally found the panel in the link below. It is advertised as, and I have confirmed, that it maxes out at 14.4V. It only put out .38A short circuited when I tested it on later afternoon.
This unit is a piece of flexible plastic, with the solar cells printed on one side. I used some stick on velcro to attach it to my canopy cover. Got the velcro from Walmart. $9 for 4ft of it. 2' wide, and be careful where you appy it, cause it ain't coming off. I run the cord inside to my always hot cigarette lighter plug. Maybe I should switch up to a dedicated exterior plug?
Will .38A charge the battery? If it were completely drained I'd need 18AH. I need a little less than 3hrs to get 1AH, and there are 9 good hours of sun per day. So it would take six sunny days to put a full charge on the battery. All I would ever expect it to do is keep the battery topped off, though.
https://www.amazon.com/gp/product/B07B6L5Y3N/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1
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