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Kawasaki ER-6n Battery

2009–2012. The OEM battery case the ER-6n takes, the lithium that drops into it, and every model year we have on file. One case across the whole run.

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2012 Kawasaki ER-6n

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OEM battery
ATZ10Manufacturer fitment list
Case family
YTZ1012V starter case
Fits all years
2009–2012same case every year on file

The Kawasaki ER-6n takes the ATZ10 case. The Antigravity ATZ-10 RE-START is a drop-in for that case: 360 cranking amps, 2.6 lb, a built-in jump start that saves enough charge to get you home. Antigravity's list names the ATZ10 for this model; Yuasa's guide names the YTX12-BS case for some trims. Go by the code on your old battery.

See the Antigravity ATZ-10

ER-6n battery by model year

2009–2012Your year · 2012OEM batteryATZ1012V starter caseWhere it comes fromManufacturer fitment listLithium that fitsAntigravity ATZ-10 RE-START →Antigravity ATZ-10-HD RE-START →Antigravity ATX12 RE-START →Antigravity ATX12-HD RE-START →Ionic S4 →Antigravity's list names the ATZ10 for this model; Yuasa's guide names the YTX12-BS case for some trims. Go by the code on your old battery.

Trim covered: ER-6n.

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What the ER-6n needs, in plain English

Every ER-6n from the first 2009 model through 2012 starts on the ATZ10 case, a 12-volt starter battery. Kawasaki ships it with a lead-acid battery that starts to fade after two or three seasons of short rides and off-season storage, and that is usually the day a rider goes looking for something better.

The lithium drop-in is the Antigravity ATZ-10 RE-START: 360 cranking amps, 2.6 pounds, the same case in lithium. Its RE-START function puts the battery to sleep before a parasitic draw can drain it, then wakes it with one press for a jump start. Antigravity's list names the ATZ10 for this model; Yuasa's guide names the YTX12-BS case for some trims. Go by the code on your old battery. Charge it with a lithium-compatible charger or maintainer for the off-season and it outlasts the lead-acid battery it replaces by years.

What size battery does a Kawasaki ER-6n take?+
The ATZ10 case, the same one on every ER-6n from 2009 to 2012. The Antigravity ATZ-10 RE-START is the lithium drop-in for it. Antigravity's list names the ATZ10 for this model; Yuasa's guide names the YTX12-BS case for some trims. Go by the code on your old battery.
Will a lithium battery work in an ER-6n without changes?+
Yes, on a bike with a healthy charging system: the lithium battery uses the same case, the same posts and the same cables, and it drops in where the lead-acid battery sat. Bikes older than about 2000 should have their voltage regulator and rectifier checked first, since a failing one overcharges any battery and lithium tolerates it less. Fill any gap in the tray with the foam spacers most lithium motorcycle batteries include.
Do I need a different charger for a lithium motorcycle battery?+
Use a charger or maintainer with a lithium (LiFePO4) mode. A lead-acid trickle charger can push the wrong voltage profile, and a desulfation mode can damage a lithium pack. A lithium-profile maintainer over the off-season keeps it topped without harm, and the battery loses only a few percent of charge a month sitting on its own.