SUNER POWER
20W Solar Battery Trickle Charger Pro
Heaviest at 4.59 lbs. Has three-stage charging algorithm (bulk, absorption, float). Performed better than average at 7.33 watts lying flat. Good impact resistance. Built-in intelligent controller.
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I Had No Idea These Were So Good!
Project Farm
Jan 18, 2026
Ranked #4
4.0
"Heaviest at 4.59 lbs. Has three-stage charging algorithm (bulk, absorption, float). Performed better than average at 7.33 watts lying flat. Good impact resistance. Built-in intelligent controller."