CR's experts pick the best portable solar panels and battery chargers to power devices like phones and laptops, plus back-up batteries and power stations.

Plan on doing some camping this spring and summer? You’ll need one of these.

We review the Bluetti "Charger 2" dc to dc vehicle charger that combines 800w alternator / battery charging with 600w of mppt solar charging that works with virtually every solar power station (not ...