12V converters for lithium golf carts

With six or four lead-acid batteries, your lights, horn and radio could tap 12 volts from two of them. With one lithium pack that's gone: you need a voltage reducer. Many conversion kits leave it out — owners find out when the headlights don't come on.

Add up your 12V loads

Headlights and tail lights 5–10A, horn about 5A, radio 5–10A, USB a few amps. Choose a converter with 30–50% headroom: 20A to 30A covers most carts, 40A+ for light bars and big sound systems.

Check the input range

A fully charged 48V lithium pack sits at about 58.4V. The converter's input must cover it (most "48V" units accept 30–60V or more); 36V carts need a unit rated for about 44V.

Fuse it and switch it

Wire the converter through a fuse sized to its input, and through the key switch so it doesn't drain the pack while the cart is parked.

Mount it where air moves

Converters shed heat; bolt them to metal away from the motor and out of standing water.

7 compared · prices October 25, 2026

Every converter in our list

Brand prices from each brand's site; Amazon items link to Amazon without a price (Amazon's rules).

We may earn a commission when you buy through our links. Rankings never change with commissions. How we make money

Epoch Batteries · 36V

36V to 12V reducer

Step-down for lights and accessories

$75 Official site

Vatrer · 36V

36V to 12V converter, 25A

25A / 335W

$80 Official site

Nilight · 36V / 48V

36/48V to 12V converter, 30A

30A / 360W · sold by Amazon

2-year warranty.

See price on Amazon Check on Amazon

Pro Chaser · 36V / 48V

36/48V to 12V reducer, 20A (golf cart kit)

20A · harness and connectors included

See price on Amazon Check on Amazon

dkplnt · 36V / 48V

36/48V to 12V converter, 40A with ignition input

40A / 480W · ACC switched input

For big light bars and stereos.

See price on Amazon Check on Amazon

Epoch Batteries · 48V

48V to 12V reducer, 25A

25A · fused

$90 Official site

Vatrer · 48V / 72V

48V/72V to 12V converter, 25A

40–90V input · 25A / 335W · IP55

$80 Official site

12V converters: questions people ask

Do I need a 12V converter after converting to lithium?

If your cart has any 12V accessories (lights, horn, radio, USB), yes. You can no longer tap two batteries of a lead-acid bank, and running 12V gear from part of a lithium pack unbalances its cells.

What size 48V to 12V converter do I need?

Add up your accessories' amps and add 30–50% headroom. Most carts need 20–30A; light bars and amplifiers push that to 40A or more.

Does the converter drain the battery when the cart is off?

It can, if it is wired straight to the pack. Wire it through the key switch or a separate switch.