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Solar to charge Radio Batteries #Solar
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John McDonald
How to calculate the size solar panel(s) required to charge radio batteries ?
Application: Portable/backpack radio & battery recharged via solar panel: 12V, 12Ahr Lithium Iron Battery provide power to Yaesu FT817ND or FT857D Motorola PMNN4077C 7.4V, 2200mAh Battery in Moto XPR6550 hand-held Charging using the 110vac wall-wort takes several hours, seeking the correct wattage of multiple small or larger roll-up solar panels to adequately recharge the radio batteries.
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Randy Davenport
To the original post, I have 7ah battery that I want solar charge info. Randy ka4nma
On Thu, May 14, 2020, 12:03 PM John McDonald <jbm1776@...> wrote: How to calculate the size solar panel(s) required to charge radio batteries ?
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John,
Check this site out for the answer. https://www.quora.com/What-wattage-of-solar-panel-do-I-need-to-charge-12v-7AH-battery-in-6hrs?share=1 4Bs/73
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Randy,
Check this site out for the answer. https://www.quora.com/What-wattage-of-solar-panel-do-I-need-to-charge-12v-7AH-battery-in-6hrs?share=1 4Bs/73
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B Johnson
I'd also suggest you look at this web site -- he's posted a lot on portable power for hams https://offgridham.com/2019/05/portable-dc-power-pack/ Barry K8NWB ----------------------------------- On Thursday, May 14, 2020, 12:03:37 PM EDT, John McDonald <jbm1776@...> wrote: How to calculate the size solar panel(s) required to charge radio batteries ? Application: Portable/backpack radio & battery recharged via solar panel: 12V, 12Ahr Lithium Iron Battery provide power to Yaesu FT817ND or FT857D Motorola PMNN4077C 7.4V, 2200mAh Battery in Moto XPR6550 hand-held Charging using the 110vac wall-wort takes several hours, seeking the correct wattage of multiple small or larger roll-up solar panels to adequately recharge the radio batteries.
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