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OUTDO YB9-BS, YB9-B motorcycle battery shown from the front with both terminals
OUTDO YB9-BS: another view of the battery and its label
OUTDO YB9-BS: another view of the battery and its label

Replacement for conventional battery · YB9-B

OUTDO YB9-BS

12 V, 9 Ah battery with 120 A CCA, replacing the YB9-B. Factory-activated and charged, so it’s ready to fit. Positive terminal on the left.

  • ✓ Factory-activated
  • 12 V · 9 Ah
  • 120 A CCA
  • + left

€23.33 VAT included · Satkit price checked on 7 October 2026

Where to buyfrom €23.33

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

  • Ready to fitSupplied with the acid inside and charged
  • PolarityPositive terminal on the left when viewed with the label facing you

Specifications

Equivalent to
YB9-B
Voltage
12 V
Capacity
9 Ah (at the 10-hour rate)
Cold cranking amps (CCA)
120 A at −18 °C
Dimensions
135 × 75 × 139 mm
Polarity
Positive terminal on the left (label facing you)
Technology
Sealed, maintenance-free AGM
Delivery condition
Factory-activated and factory-charged
Weight
3 kg
Same format as
GM9Z-3B-1 (GS), BB9-B (BS Battery)
Warranty
24 months

About this battery

This is a direct replacement for the YB9-B, with the same voltage, polarity and case dimensions. It leaves the factory with the electrolyte inside and charged, so there’s no acid pack to fit or waiting required: check the voltage and install it.

The original YB9-B is a conventional flooded battery. A sealed battery can replace it without maintenance, provided the motorcycle’s voltage regulator/rectifier charges between 14.0 and 14.8 V (measure at the terminals with the engine running at 3000–4000 rpm). If an older motorcycle charges below this range, stick with a conventional battery.

Use a smart motorcycle charger: the recommended charge current is about 0.9 A (capacity divided by 10), and never more than 3 A.

Dimensions, terminal layout and similar battery codes: YB9-B battery part number page.

Related guide

Buying guide · The basics · 16 min read

How to choose a motorcycle battery: code, dimensions and type

To get it right, you need four details: the battery part number, dimensions, which side the positive terminal is on, and cold cranking amps and capacity that match or exceed the original. Here’s how to find each one, which battery type suits your motorcycle, and how to look after it so it lasts.

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