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The only one to publish a daily yield

ECO-WORTHY 25 W monocrystalline, 23 % cells, 100 Wh/day, waterproof controller, 360° bracket

A 25 W monocrystalline 12 V charger kit with A+ cells at up to 23 % efficiency, a waterproof controller with temperature compensation and a 360 degree bracket.

ECO-WORTHY 25 W solar battery charger kit with controller and clips

ECO-WORTHY 25 W monocrystalline, 23 % cells, 100 Wh/day, waterproof controller, 360° bracket

A 25 W monocrystalline 12 V charger kit with A+ cells at up to 23 % efficiency, a waterproof controller with temperature compensation and a 360 degree bracket.

Panel wattage
25 W monocrystalline with A+ cells at up to 23 % efficiency, producing a stated 100 Wh per day, third bullet
Regulation
An improved waterproof controller with battery temperature compensation, working in any weather, fourth bullet
Reverse-current protection
Stated as having no night-time power consumption, fourth bullet — the only charger in this family to address the night drain explicitly
Connection method
A crocodile clip cable and an O-ring battery cable, both supplied, fifth bullet; for 12 V LiFePO4, AGM, SLA and lithium batteries, first bullet
Mounting
A 360° rotatable mounting bracket with a screw set, fifth bullet
Cable length
Nowhere in the listing
Amazon reference
B0FPWWX4ZH (same reference on 6 Amazon marketplaces)
EAN
0810198851489
  • A daily yield figure — 100 Wh — which turns a wattage into something usable
  • No night-time drain, stated, which is what a controller is for on a parked vehicle
  • No cable length, so where the panel can sit relative to the battery is unknown

Best for: Powering a small off-grid load as well as maintaining a battery.

≈ €40
Check price on Amazon

Specifications

Panel wattage
25 W monocrystalline with A+ cells at up to 23 % efficiency, producing a stated 100 Wh per day, third bullet
Regulation
An improved waterproof controller with battery temperature compensation, working in any weather, fourth bullet
Reverse-current protection
Stated as having no night-time power consumption, fourth bullet — the only charger in this family to address the night drain explicitly
Connection method
A crocodile clip cable and an O-ring battery cable, both supplied, fifth bullet; for 12 V LiFePO4, AGM, SLA and lithium batteries, first bullet
Mounting
A 360° rotatable mounting bracket with a screw set, fifth bullet
Cable length
Nowhere in the listing
Amazon reference
B0FPWWX4ZH (same reference on 6 Amazon marketplaces)
EAN
0810198851489

Twenty-five watts, with the day’s work written down.

A hundred watt-hours a day

Four chargers in this family publish a wattage. One publishes what that wattage delivers.

A hundred watt-hours is roughly eight amp-hours into a twelve-volt battery: several times a typical parasitic drain, or a small pump run intermittently, or a real contribution to a fridge. That is a number you can plan against, where a wattage is a number you have to convert first.

Nothing at night

Stated explicitly: no night-time power consumption.

That is the whole point of a maintenance charger. An unregulated panel becomes a load after dark and gives back what it collected. A controller that draws nothing is what makes the difference between maintaining a battery and cycling it pointlessly.

Temperature compensation

The controller adjusts the charge voltage for battery temperature. A cold battery wants a higher voltage and a hot one a lower; a controller that ignores this either undercharges in winter or cooks in summer.

Both cables

Crocodile clips for connecting and disconnecting. O-ring terminals for a permanent installation. Both supplied, rather than one and a choice to make later.

The bracket

360° rotatable, with the screws.

What is missing

The cable length. On a charger whose whole installation is a question of how far the panel can be from the battery, that is the figure to ask for — and the VEVOR charger in this family publishes over four metres.

Availability

German, French, Italian and Spanish Amazon stores quoted 40 € to 50 € when this page was compiled.

British Amazon store carries it too, priced in its own currency, which the euro range above deliberately omits.

American Amazon catalogue carries an entry for it, with nobody selling.

These figures are what Keepa reported on the day this page was last updated. Availability and pricing move without notice.

Prices quoted in this text were read on 16 September 2026. The live price is at the top of the page.

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