Voltage table: which trucks run which voltage
Almost every electric forklift runs on one of four voltages. The pattern follows the size and workload of the truck: lighter trucks run lower voltages, heavier trucks run higher ones. Higher voltage lets a truck draw more power without pushing excessive current through its cables and components, which is why the biggest trucks need the highest voltages.
- 24V — pallet jacks and walkies. Electric pallet jacks, walkie stackers, and small rider pallet trucks. Light-duty warehouse work: moving pallets across the floor, loading and unloading at dock height. Compact batteries, shorter runtimes, and the lowest power draw of the four.
- 36V — mid-size counterbalance, order pickers, reach trucks. The workhorse range for indoor distribution. Mid-size sit-down counterbalance trucks, order pickers, and narrow-aisle reach trucks mostly run 36V. If your warehouse runs a mixed fleet of indoor trucks, odds are most of them are 36V.
- 48V — heavy-duty counterbalance, outdoor pneumatics. Larger counterbalance trucks, outdoor pneumatic-tire forklifts, and high-capacity warehouse trucks. Common in manufacturing, lumber yards, and anywhere trucks lift heavy loads or work on rough surfaces and ramps all day.
- 80V — ultra-heavy-duty, port and container handling. The biggest electric trucks: high-capacity container handlers, port equipment, and heavy industrial applications. Specialized chargers and infrastructure, and a much smaller share of the forklift population.
For the full voltage reference, including how voltage interacts with sizing and chemistry, see the technical specs guide. The table above is the quick version: find your truck type, and you have almost certainly found your voltage.
How to find your truck's voltage
You do not need to guess, and you should not rely on what the truck next to it runs. There are two places the voltage is printed, and checking one of them takes about a minute.
- The truck data plate. A metal plate mounted on the truck frame, usually near the operator compartment or on the side of the body. It lists the make, model, serial number, capacity, and battery voltage. On older trucks the plate can be worn or painted over; a phone photo with the flash on usually brings it back.
- The existing battery label. The battery itself carries a label with its voltage and amp hour rating, usually on the side of the steel case. If the truck still has its original battery, the label voltage is the truck voltage. If the battery has been replaced before, trust the data plate over the battery label — a previous owner could have installed the wrong battery.
- The truck manual or the dealer. If the plate is unreadable and the battery is gone, the make, model, and serial number are enough for a dealer to look up the voltage. Send those three numbers and they can confirm it.
Write the voltage down per truck, not per fleet. Two trucks that look identical can run different voltages if they are different model years or configurations, and that is exactly how wrong batteries get ordered.
Voltage must match exactly — never substitute
This is the hard rule of forklift batteries. The replacement battery voltage must match the truck's voltage exactly. There is no close-enough, and there is no adapter or workaround that makes a mismatch safe.
- Higher voltage than the truck: a 48V battery in a 36V truck pushes more voltage through a motor, controller, and wiring that were not built for it. Expect damaged electronics, burned contacts, and a repair bill far larger than the battery you were trying to save money on.
- Lower voltage than the truck: a 36V battery in a 48V truck will not run the truck properly. It will be sluggish, lift weakly if at all, throw fault codes, and drain itself quickly. The truck may refuse to operate entirely.
- Chargers must match too: a charger built for one voltage cannot charge a battery of another voltage. Ordering the right battery but keeping the wrong charger leaves you with a battery you cannot charge.
Amp hours, by contrast, have some flexibility — you can often move up or down within the same voltage as long as the battery fits and stays in the truck's weight class. Voltage has zero flexibility. If a deal on a battery looks too good to be true, check the voltage first. It is usually the catch.
When a fleet runs multiple voltages
Mixed-voltage fleets are normal, and they create two practical problems: ordering mistakes and charging mistakes. Both are solved with labels and discipline, not with new equipment.
Start by tagging every truck and every charger with its voltage in big, readable lettering. A piece of colored tape or a laminated tag on the battery compartment and on the charger costs almost nothing and prevents the most common error in a mixed fleet: plugging a 36V battery into a 48V charger, or the reverse. Color-coding by voltage is standard practice in larger operations for exactly this reason.
Keep batteries and chargers grouped by voltage in the charging area, so a 48V battery never ends up parked in front of a 36V charger by habit. And when you order replacements, order by truck — make, model, serial number, and voltage — not by a count of batteries. A purchase order that says “six batteries” without voltages is how a mixed fleet ends up with the wrong stock.
If your fleet is growing, standardizing on one voltage for new truck purchases simplifies everything downstream: fewer spare batteries to stock, fewer charger types to maintain, and fewer chances for a mismatch. That is a decision for the next truck purchase, not a reason to convert the trucks you already own — a lithium conversion changes chemistry, not voltage, and a truck built for 36V stays a 36V truck. Our lithium conversion cost guide explains what does and does not change in a conversion. If you are still choosing trucks, browse the forklift battery types overview to see how voltage, chemistry, and application fit together.