Husqvarna Riding Mower Battery
Most Husqvarna lawn tractors, riding mowers and zero turns start on a 12-volt Group U1 or U1R, the same battery used across the riding mower world. A lithium Husqvarna riding mower battery drops into that tray, cranks harder than the lead-acid original, weighs a fraction as much, and holds its charge from the last cut of fall to the first of spring.

Husqvarna Lawn Mower Battery
StarterAntigravity Group U1 12V Lawn Mower Battery 925CA (w/ Re-Start, Left Positive)
StarterAntigravity Group U1R 12V Lawn Mower Battery 925CA (w/ Re-Start, Right Positive)
Dual PurposeDakota Lithium 12V Lawn Mower Battery 25Ah DL+ (300CCA Dual Purpose)
StarterGroup U1Ionic Lithium Group U1 12V Lawn Mower Battery 720CA (S8, Bluetooth)
StarterGroup U1Ionic Lithium Group U1 12V Lawn Mower Battery 1220CA (S8, Bluetooth)
Husqvarna Riding Mower Battery Size
Husqvarna fits a Group U1 or a U1R depending on the model, and the two share one case, about 7.7 x 5.2 x 7.2 inches. The only difference is the terminal layout: face the battery with the posts nearest you, and a U1 has the positive on the left, a U1R on the right. The cables on your mower reach one way, so match the letter on the old battery. The Antigravity comes in both layouts, and the Ionic S8 has posts at all four corners, so it turns around to suit either.
The same goes for a Husqvarna zero turn mower battery: check the label for the group size and the terminal side, or call 888-274-7544 with the model number and we will check it for you. This page is for the 12-volt starting battery in a gas riding mower; Husqvarna’s battery-powered mowers run their own tool packs.
Husqvarna Riding Mower Battery FAQ
What size battery does a Husqvarna riding mower take?+-
Most take a 12-volt Group U1 or U1R, about 7.7 x 5.2 x 7.2 inches. The letter on your old battery tells you which side the positive post is on: U1 left, U1R right, facing the terminals.
Do Husqvarna zero turn mowers use the same battery?+-
Most do: a 12-volt Group U1 or U1R. Check the label on your old battery for the group size and the terminal side, or call 888-274-7544 with the model number.
Can a lithium Husqvarna mower battery stay in the mower over winter?+-
Yes. LiFePO4 loses only a few percent of its charge a month, so it starts the mower in spring without a tender. It will not take a charge below freezing, so do not plug a charger into it in an unheated shed on a cold day.