[Elecraft] OT: Battery and charger recommendations for 50 watt solar panel

[Grant Youngman]

I second the GENASUN.  And they have the advantage of being RF dead quiet.

Grant NQ5T

> On Jan 4, 2020, at 6:48 PM, Igor Sokolov <ua9cdc at gmail.com> wrote:
> 
> For several years I have been using 5.5 AH  (for KX3) or 25 AH (for K3) LiFePo4 batteries, charging them with 1 or 2 60W portable folding solar panels using GENASUN MPPT rf quiet controller. This controller is highly recommended.
> 
> In reality a pair of the above panels  were squeezing maximum of 5.5 A.
> 
> 73, Igor UA9CDC
> 
> 05.01.2020 3:24, Wayne Burdick пишет:
>> I finally installed a single 50 W, 12 V solar panel on the roof for light backup purposes -- phone/pad/laptop/flashlight charging, natural-power use of the KX2/KX3, etc. Connecting the panel directly to automotive-style USB chargers works great when the sun is shining.
>> 
>> My 15 year old thinks it's cool. He wants me to turn the mains breaker off for a whole day so we can get the full off-grid experience :)
>> 
>> To facilitate that more rigorous purpose, I'd like to add a modest battery pack, say 10 to 20 AH, that is charged by the PV panel without intervention. The charger has to be compatible with simultaneous charge/discharge, i.e. we may need charge USB devices at the same time the PV panel is charging the battery. The battery voltage should be 11 to 12 V minimum after any controller drops so it'll work with the radios.
>> 
>> I could cobble something together from several different vendors, but I'd prefer to purchase system components that are already proven, reliable, and reasonable in cost. Any recommendations?
>> 
>> tnx
>> 
>> Wayne
>> N6KR
>> 
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