5W Portable Solar Car Battery Charger – Emergency Power Supply

5W Portable Solar Car Battery Charger – Emergency Power Supply

Stay powered on the go with this 5W Portable Solar Car Battery Charger, designed for maintaining and supplementing your car battery’s charge during long periods of inactivity. Crafted with high-efficiency monocrystalline silicon, it delivers clean, renewable energy to keep your vehicle’s battery topped up—especially helpful for emergency starts and self-discharge prevention.

Ideal for outdoor activities, camping, or remote work sites, this lightweight solar charger features a compact 320x120mm size and convenient visor-mounting straps for in-car charging. It works with 12V to 18V batteries, offering a safe and eco-friendly trickle charge solution. Simply secure it under the sun and let it restore your battery gradually and safely.

With up to 300mAh output, this solar charger is perfect for car batteries, laptops (via proper adapters), and small electronics. It’s not meant for charging fully drained batteries but excels at maintaining charge and ensuring your vehicle starts when needed. A smart, low-maintenance solution for every driver.

Features:

Product is for your car battery, notebook computer or other 18V rechargeable battery designed for emergency charging devices, trickle charge the battery with the solar power.
Lightweight, environmental and safe
With two elastic straps of the back, convenient to set in the sun visor, you can sunshade and charge the car battery at the same time
Great for outdoor work or travel or camping training

Note:
1. Be sure to note when using the product is negative and the positive must be consistent with the charging products
2. If no professionals, please do not go trying to change the product
3. The products are used to trickle charge the car battery, it is mainly used to supplement the power that loss by the car battery self-discharge, so you can always start the car. Do not try to make it to no battery charging or charge the battery itself is shortage.


Monocrystalline silicon Solar Panel
Max work current: 300mAh
Power: 18W/5W

Dimension: 320*120MM
Package Weight: 435g