Review on 🔌 Sun Energise Waterproof Solar Battery Charger Pro 12V 10W - Built-in MPPT Charge Controller + 3-Stage Charging - Trickle Battery Maintainer for Car, Motorcycle, Boat, ATV by Justin Goff

I found out too late that this solar panel was draining my car battery so I couldn't start the car. The reason is that all these batteries draw power from the battery at night or when the sun is weak. When this happened to me, I checked. This panel draws at least 10mA at night. A daily charge cannot handle this constant loss of energy. So it's not a battery repair, it's a battery destroyer. I think this is a problem for all battery repairers on the Revain shopping sites. You should provide a reverse current figure to tell us whether the panel is supporting or draining the battery. No product on the Revain site offers specifications for dark leakage current, which must be microamps to avoid draining the battery.