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YTX12-BS

YTX12-BS Motorcycle Battery: Dimensions & Polarity

Dimensions, polarity, what the code means, similar battery codes and the replacement battery.

By Redacción de Satkit Updated Published on 3 min read 1 sources cited

In short

  • 12 V · 10 Ah · 180 A EN
  • 150 × 87 × 130 mm · positive terminal on the left
  • Satkit replacement: OUTDO UTX12-BS

The YTX12-BS is a 12 V maintenance-free AGM motorcycle battery with a capacity of 10 Ah, 180 A cold cranking amps (EN) and a case measuring 150 × 87 × 130 mm. With the label facing you, the positive terminal is on the left.

YTX12-BS drawing: 150 × 87 × 130 mm, positive terminal on the leftLABEL+−150 mmLength130 mmHeight87 mmWidth
Fig. 01 YTX12-BS drawing: 150 × 87 × 130 mm, positive terminal on the left Drawing: Satkit.ie, to scale using the dimensions in the product specifications

Dimensions and specifications

YTX12-BS OUTDO UTX12-BS
Voltage 12 V 12 V
Capacity 10 Ah (10 h) · 10.5 Ah (20 h) 10 Ah (10 h)
Cold cranking amps 180 A (EN) 180 A at −18 °C
Length × width × height 150 × 87 × 130 mm 150 × 87 × 130 mm
Polarity Positive terminal on the left Positive terminal on the left
Technology AGM AGM
Supplied With an acid bottle Activated and charged
Weight — 3.62 kg

The YTX12-BS column gives the specifications from Yuasa, the brand behind the battery code; the other column shows the specifications of the battery sold by Satkit. Capacity is always compared using the same hour rate, and starting current using the same standard.

What does YTX12-BS mean?

  • Y: Yuasa, the brand that created the naming system. Other manufacturers change only this letter (GS uses GTX, Exide uses ETX and BS Battery uses BTX), leaving the rest unchanged.
  • TX: the maintenance-free AGM series.
  • 12: a size and power index, not the amp-hours: the YTX12-BS has a capacity of 10 Ah at the 10-hour rate.
  • -BS: the original battery is supplied dry with an acid bottle (bottle supplied), so it must be filled before fitting.

Battery codes that are easy to mix up with the YTX12-BS

Battery code Dimensions Polarity Difference
YTX14-BS 150 × 87 × 145 mm + left A different case: 15 mm taller.
YT12B-BS 150 × 69 × 130 mm + left A different case: 18 mm narrower.
YTX9-BS 152 × 87 × 107 mm + left A different case: 23 mm shorter.

Satkit battery for the YTX12-BS

OUTDO UTX12-BS: 12 V and 10 Ah, 180 A starting current, sealed AGM, factory-activated and factory-charged.

The Yuasa YTX12-BS is supplied with the acid bottle separately; Satkit's battery arrives activated and charged, so you can skip the filling and initial charging.

Motorcycles that use this battery

46 versions by make and model

Piaggio

CFMoto

Kawasaki

Vespa

See 25 more

Aprilia

BMW

Kymco

Triumph

Zontes

Daelim

Hyosung

Moto Morini

Find my motorcycle battery →

Charging and fitting

Find out about the full process in our guide to choosing a motorcycle battery.

Satkit battery

OUTDO UTX12-BS, YTX12-BS motorcycle battery shown from the front with both terminals

OUTDO UTX12-BS

12 V, 10 Ah battery with 180 A cold cranking amps, a replacement for the YTX12-BS. Factory-activated and charged, ready to fit. Positive terminal on the left.

Where to buyfrom €27.40

Prices incl. VAT checked on 7 October 2026; they may change.

Sources

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