TC15 · Solar battery maintenance
Small enough to keep with the car.
Give a compatible 12V lead-acid vehicle battery a solar top-up while the vehicle is parked. The TC15 combines a 15W folding monocrystalline panel with an integrated controller, practical connection accessories and a USB-A output for small devices. It is a compact option for battery maintenance between drives.
Made for everyday use
A closer look.
A useful routine between drives
The integrated controller and SAE connection support solar trickle charging for a compatible vehicle battery. Use the panel as part of your regular battery-care routine for a car or seasonal vehicle that spends time parked.
Unfold when sunlight is available
The folding panel opens to 544 × 216 × 16 mm. Four suction cups and four carabiners are included, giving you options for positioning the panel according to the product instructions. The listed item weight is 1.4 lb.
USB power for small essentials
A USB-A output rated at 5V, up to 3A, adds a charging option for compatible small devices. The 15W rating describes the solar panel; it does not promise each connected device that amount of power or full output from multiple connections at once.
A car used occasionally
Add a solar maintenance option during sunny parking periods, with the connection method chosen to suit the vehicle and battery.
Seasonal vehicle care
Keep the folding panel and its adapters together for battery maintenance when a compatible vehicle is used less often.
Check the battery and connection
Intended for compatible 12V lead-acid batteries. Confirm the battery’s charging requirements and the vehicle’s approved charging connection before use. Included connector choices do not establish compatibility with every vehicle or battery chemistry.
Connections included
TC15 panel with controller; SAE-to-DC5521 adapter; SAE adapters for alligator clips, ring terminals, cigarette-lighter socket and OBD-II; four carabiners and four suction cups.
Know your equipment
Technical specifications
Connections, power ratings and practical details at a glance.
| Rated panel power | 15W |
|---|---|
| Cell type | Monocrystalline |
| DC output | 14.4V / 1.1A maximum |
| USB-A output | 5V / 3A maximum |
| Panel dimensions, unfolded | 544 × 216 × 16 mm |
| Battery connection | SAE via included adapters |
| Item weight | 1.4 lb |
| Folded dimensions | 9.21 × 7.48 × 1.93 in |
Position the panel in unobstructed sunlight and follow the supplied product and vehicle instructions.
Before you get started
A few useful answers.
Is this for maintaining a vehicle battery?
Yes. Its intended role is solar trickle charging and battery maintenance; it is not a substitute for equipment intended to recover a deeply discharged battery.
Can it charge a phone?
A compatible device can use the 5V USB-A output with a suitable charging cable. Available output depends on sunlight and the device.
Which vehicle connection should I use?
Choose the connection approved for your vehicle and battery. Check the vehicle instructions before using the socket or OBD-II adapter.
Will it always deliver 15W?
No. Rated panel power is measured under standard test conditions. Shade, sunlight intensity, panel angle and temperature affect actual output.