While the bioenno's are great the BP-500 not only is more compact but supports solar charging (up to 50v) with its built in charge controller if that's important to you. ?Here's a tip on buying Bioenno batteries. ?Chameleon Antennas is a dealer for Bioenno batteries and periodically they run sales like on Black Friday and 4th of July. ?If you sign up with them with your email they will give you a 10% discount on any purchase too. ?By signing up they will let you know when they have their sales. ?BTW you can't apply the 10% off to the sale price because they only allow 1 coupon code when checking out. :(
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As always, Best 73?
David Holmgren K9AT "Ruffers"