Smart 12V chargers for lead acid and lithium batteries, shipped across the US and Canada.

Shop chargers

Two chargers, one size, the same USB-C power. Choose by the chemistry printed on your battery.

Lead acid or lithium?

Both chargers are the same size and run on the same USB-C power. The only thing that decides it is the battery.

Green labelLead acidBlue labelLithium
Battery typesFlooded (wet), gel, AGMLithium-ion, LiFePO4
Your battery label saysAGM, GEL, SLA, flooded or maintenance freeLiFePO4, lithium iron phosphate or lithium-ion
Output12V, 0.75 to 1.2 A12V, 0.75 to 1.2 A
Power inputUSB-C, PD and QCUSB-C, PD and QC
Size and weight56 mm, 180 g56 mm, 180 g
Wakes a battery in BMS protectionNot needed for lead acidYes
Price$39.95$49.95
Lead acid chargerLithium charger

Not sure? The chemistry is printed on the battery case. If you can't find it, send us the battery model and we'll tell you which charger fits.

How it works

Three steps in the fall. Nothing to do until spring.

  1. 1

    Connect it

    Attach the output lead to the battery: red to positive (+), black to negative (−).

  2. 2

    Plug in USB-C

    Use a USB-C PD or QC power source: a wall charger, a power bank or a vehicle USB-C port.

  3. 3

    Leave it

    It charges the battery to full, then switches to maintaining. Leave it connected until the season starts.

Questions before you buy

Can't find your answer? Ask us and a real person will reply.

Which charger do I need?

Check the label on the battery. AGM, GEL, SLA, flooded or "maintenance free" means lead acid. LiFePO4 or lithium means lithium. Both chargers are 12V only.

Can I leave it connected all season?

Yes. That's what it's for. Once the battery is full, the charger switches to maintaining and only tops it up as it drains.

What USB-C power source does it need?

Any USB-C charger or power bank that supports PD or QC fast charging. Most modern phone and laptop chargers do.

Will it work on a 6V or 24V battery?

No. Both chargers are made for 12V batteries only.

What vehicles is it for?

Anything with a 12V battery that sits for weeks or months: motorcycles, boats, jet skis, snowmobiles, ATVs, RVs, classic cars and lawn tractors.

Do you ship to Canada?

Yes. We ship across the United States and Canada.

We're here to help

Contact us

Not sure which charger fits? Send us the battery model.

Get in touch

Shipping and returns

Delivery times across the US and Canada, and how returns work.

Shipping details

Warranty

What's covered and how to make a claim.

Warranty details

User guide

Connecting, charging and what the light on the charger means.

Read the guide