Please check that the polarity connection is correct, otherwise it will cause a short circuit and prevent the solar panel from working.
The solar panel will not damage the battery. If the battery cannot be charged or is exhausted, please check whether the battery is damaged or aged.
Because vehicles installed comsumable devices like monitor and alarm system which have a small but constant battery drain, they will drain out battery and can't start-up.
Why there is still no power when using a solar panel to charge the battery?
The larger the power of the solar charger, the faster the charging speed. If the solar panel's power is not enough to meet the needs of the car battery, the battery may not be fully charged. If the car battery is aging also can't full charged.
Alligator clip, solid and quick connect to battery, but don't recommended to use it while driving
Suction Cups, can be adsorbed on car windows and other places and is easy to take
Cigarette lighter, plug and play. Not suitable for cars cigarette lighter not operate when ignition is off
With upgraded Intelligent Charger Controller, solar trickle charger protects your battery from reverse polarity, overcharge, over-voltage, over temperature, backflow or short circuit.
Charging all kinds of 12V batteries including LiFePO4, Lithium Ion, AGM, SLA, GEL, FLD, EFB and lead-acid batteries.
| Customer Reviews | 4.3 out of 5 stars 2,105 | 4.3 out of 5 stars 2,405 | 4.3 out of 5 stars 2,405 | 4.1 out of 5 stars 81 | 4.6 out of 5 stars 40 |
| Price | $22.99$22.99 | $23.97$23.97 | $49.97$49.97 | $14.99$14.99 | — |
| Solar Cell | Amorphous | Monocrystalline | Monocrystalline | — | — |
| Operating Voltage | 12V | 12V | 12V | 5V-60V | — |
| Built-in Controller | ✔ | ✔ | ✔ | ✘ | ✘ |
| Waterproof | ✔ | ✔ | ✔ | ✔ | ✔ |
| Dimension | 13.98 x 4.92 x 0.55 inches | 14.9 x 7.5 x 0.06 inches | 14.4 x 13.4 x 0.06 inches | 10 inches | 15FT |