John Deere Lawn Mower Battery
From the D100 lawn tractors to the X700s and the Z-Trak zero turns, John Deere lists one battery for its riding mowers: a 12-volt Group U1, part TY25221B. A lithium John Deere lawn mower battery drops into the same tray and bolts to the same cables, holds its charge through a winter in the shed, and weighs half as much as the 19-pound lead-acid original, or less.

John Deere Riding 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)
John Deere Battery Size Chart
John Deere’s parts catalog lists the same battery for every tractor below: part TY25221B, a 12-volt Group U1 rated 30Ah and 350 cold cranking amps, about 7.8 x 5.2 x 7.3 inches. The Group U1 lithium batteries on this page drop into that tray. The Dakota 25Ah is narrower than a U1 and needs a spacer.
| Series | Models that take a Group U1 |
|---|---|
| D100 series | D105, D110, D120, D130, D140, D150, D155, D160, D170 |
| E100 series | E100, E110, E120, E130, E140, E150, E160, E170, E180 |
| S100 and S200 | S100, S110, S120, S130, S140, S160, S170, S180, S220, S240 |
| X100 series | X107, X110, X116R, X117R, X120, X127, X140, X146R, X147R, X166, X167 |
| X300 series | X300, X304, X310, X320, X324, X330, X340, X350, X354, X360, X370, X380, X384, X390, X394 |
| X400 to X700 | X465, X475, X485, X570, X575, X580, X584, X585, X590, X700, X710, X720, X724, X728, X729, X730, X734, X738, X739 |
| Z-Trak zero turns | Z235 through Z970R, including the Z300, Z500, Z700 and Z900 series |
| Earlier tractors | L105, L107, L108, L118, LA105 to LA175, LT150, LT155, LT180, LT190, GT242, GT262, GT275, STX30, STX38, STX46 |
Two checks before you order. Terminals: face the battery with the posts nearest you; a U1 has the positive on the left, a U1R on the right, and the cables on your tractor reach one way. Charging: the tractor’s own charging system keeps a lithium John Deere lawn tractor battery topped up while you mow, and for winter storage any charger with a lithium mode will do, like the 12V lawn mower battery charger we carry. This page covers riding mowers and lawn tractors; John Deere’s compact utility tractors, the 1025R and up, take a larger battery.
John Deere Lawn Mower Battery FAQ
What battery does a John Deere D105 take?+-
A 12-volt Group U1. John Deere lists part TY25221B (30Ah, 350 CCA) for the D105 and the rest of the D100 series, including the D110, D130 and D140, so a Group U1 lithium battery drops into the same tray. Match the terminal layout (U1 or U1R) on your old battery.
What size battery does a John Deere riding mower take?+-
A Group U1, across the line. The D100, E100, S100, X300, X500 and X700 series and the Z-Trak zero turns all list the same TY25221B, a U1 case about 7.8 x 5.2 x 7.3 inches, and the older L, LA, LT, GT and STX tractors on the chart above take it too.
Is there a lithium battery for a John Deere zero turn mower?+-
Yes. The Z-Trak zero turns, from the Z235 to the Z970R, list the same Group U1 as the lawn tractors, so the Group U1 lithium batteries on this page fit. Call 888-274-7544 with the model number if you want us to check.
What charger should I use on a lithium John Deere battery?+-
Any 12V charger with a lithium (LiFePO4) mode. The tractor keeps the battery topped up while you mow; for storage, use a lithium maintainer like the 12V lawn mower battery charger we carry, never a lead-acid charger with a desulfation setting.