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Yamaha TX500 Battery

1973–1974. The OEM battery case the TX500 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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1974 Yamaha TX500

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OEM battery
YTX14AHL-BSYuasa 2026 OEM guide
Case family
YTX14AL12V starter case
Fits all years
1973–1974same case every year on file

The Yamaha TX500 takes the YTX14AHL-BS case. The Antigravity ATX12-AH RE-START is a drop-in for that case: 360 cranking amps, 3 lb, a built-in jump start that saves enough charge to get you home.

See the Antigravity ATX12-AH
Fits your bike
360CA
Antigravity ATX12-AH 12V Motorcycle Battery 360CA (w/ Re-Start)Starter
Antigravity

Antigravity ATX12-AH 12V Motorcycle Battery 360CA (w/ Re-Start)

12V·360CA·3 lb
RE-START
$250
$330Save $80
3-yr warranty · Free Shipping

TX500 battery by model year

1973–1974Your year · 1974OEM batteryYTX14AHL-BS12V starter caseWhere it comes fromYuasa 2026 OEM guideLithium that fitsAntigravity ATX12-AH RE-START →

Trim covered: TX500.

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What the TX500 needs, in plain English

Every TX500 from the first 1973 model through 1974 starts on the YTX14AHL-BS case, a 12-volt starter battery. Yamaha 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 ATX12-AH RE-START: 360 cranking amps, 3 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. 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 Yamaha TX500 take?+
The YTX14AHL-BS case, the same one on every TX500 from 1973 to 1974. The Antigravity ATX12-AH RE-START is the lithium drop-in for it.
Will a lithium battery work in a TX500 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.