TC28 · Solar battery maintenance
A folding solar option for vehicles used less often.
The TC28 pairs a 28W folding monocrystalline panel with a charge controller and vehicle connection accessories. Use it for solar maintenance of a compatible 12V battery during sunny parking periods, with the connection chosen to suit your vehicle.
Made for everyday use
A closer look.
Daylight battery care
A solar maintenance setup can help replenish a compatible battery while a vehicle is parked. The controller manages charging according to its designed charging profile; select a battery supported by the product instructions.
Choose the vehicle connection
The listed adapter set includes OBD-II, alligator clips, cigarette-lighter and ring-terminal options. Verify which connection is approved for your vehicle before use.
Foldable and easy to set out
Four carabiners and four suction cups provide positioning options. Place the panel where it receives direct sunlight, then fold it for storage when it is not needed.
An occasionally used car
Add solar maintenance to your battery-care routine during periods when the car is driven less often.
Seasonal vehicle storage
Use suitable daylight and an approved connection to maintain a compatible battery, following the vehicle and charger instructions.
Confirm the battery chemistry and charging profile
Designed for compatible 12V battery maintenance. The specification identifies lead-acid use; do not assume compatibility with lithium batteries or every vehicle simply because an adapter fits. Verify the controller charging profile and the approved vehicle connection before use.
Connection and mounting accessories
TC28 panel with controller; SAE vehicle adapters for OBD-II, alligator clips, cigarette-lighter and ring terminals; four carabiners and four suction cups.
Know your equipment
Technical specifications
Connections, power ratings and practical details at a glance.
| Rated panel power | 28W |
|---|---|
| Solar cells | Monocrystalline |
| Battery-system application | 12V |
| Output current | 2.33A |
| USB connection | USB-C |
| Vehicle adapter options | OBD-II, alligator clips, cigarette-lighter and ring terminals |
Rated panel power is measured under standard test conditions. Actual output varies with sunlight, shade, panel angle, temperature and the connected equipment. Keep electrical connections and connected devices dry.
Before you get started
A few useful answers.
Is it a jump starter?
No. It is a solar battery-maintenance product, not equipment for starting a vehicle with a depleted battery.
Can I use any included adapter?
Use only the connection approved for your vehicle and battery. Check the vehicle instructions before using its socket or OBD-II port.
Can it charge every battery chemistry?
No. Confirm that the controller charging profile is suitable for the specific battery. Do not infer lithium compatibility from a matching connector.
Why does charging vary?
Available sunlight, shade, panel angle, temperature and the battery condition all affect the charging process.