POWOXI-Upgraded-20W-Solar-Battery-Charger-Maintainer, External Smart 3-Stages PWM Charge Controller, 12V Solar Panel Trickle Charging Kit for Car, Marine, Motorcycle, RV, etc

Nice product

This is a great product. We have a Toyota Yaris hybrid and if not used for some time the battery used to drain and we could not start the car but now we connect this solar charger and having not used it for some time it starts perfectly even when there has not been much sun.

Facile da installare e funziona bene per caricare la batteria della moto

Using this panel to charge a 12V 300CCA battery for a PWC lift winch. Since it has a very sturdy black non metallic frame which is predrilled in the corners, it was easy to build supports to attach this to my dock close to the PWC lift. The controller included has all the information needed to know when its correctly connected, charging and fully charged. The 20 Watt size is more than enough for the system I have and its continuous use.

Bought to maintain classic car battery between use. pre install tested on two mini-12V lead acids - pre-charged as delivered so charge level unknown. Took 2-3 days to charge each one to get Green LED on but panel was only vertical in dining room window (facing SW) so OK it works as expected. Bought with panel a long twin lead with matching connectors. Took it to the remote garage to install as a fixture and:seemed nothing worked ??? Well, (1) put your voltmeter on 200V DC as O/C panel output > 20V DC - in high sunlight about 27-30V so safe; (2) Get the extension cable the right way round so it fits panel AND control unit - then mark cable so next time not stupid , And behold - even in the garage panel controller showed charging tho probably take forever . (3) It's quite a big panel and needs to be in sunlight for as much as possible but wet-weather protected so an off-ground lectern support with a clear glass panel over the solar element and some waterproof tape around the panel - long cable joint would be advisable.And Classic car happy too!