Yuasa YTX9-BS Battery

Description

Yuasa YTX9-BS Battery Replacement (12V AGM, Maintenance-Free)

The Yuasa YTX9-BS is a proven AGM (Absorbed Glass Mat) powersports battery designed for reliable starts and low maintenance. It’s a “fresh pack” / acid-pack style battery (depending on how it’s supplied) that delivers consistent cranking performance and holds up well for seasonal vehicles when properly maintained.

If your bike cranks slowly, loses charge during storage, or struggles to start in cooler weather, replacing your battery with the correct YTX9-BS size and rating can restore dependable starting power and stable voltage.

Key Specs (Yuasa YTX9-BS)

• Voltage: 12V

• Capacity (10-hr): 8Ah

• CCA: 135A

• Dimensions (metric): approx 150 mm × 87 mm × 105–107 mm (varies slightly by listing format)

• Weight: ~6.6 lb (about 3.0 kg)

• Acid volume: 0.4 L

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Key Features (Bullets)

• Direct replacement for Yuasa YTX9-BS

• AGM maintenance-free construction

• 8Ah capacity (10-hr rate)

• 135 CCA for dependable starting

• Compact case size for many motorcycle/ATV battery compartments

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Replaces / Search Variations

• YTX9-BS (exact model)

• Common buyer searches: YTX9BS, Yuasa YTX9-BS AGM battery, 12V 8Ah 135 CCA motorcycle battery

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Fitment Note (reduces returns)

Fitment varies by vehicle. Before ordering, confirm:

1. Your old battery label says YTX9-BS

2. Your vehicle uses 12V (not 6V)

3. The case size matches your battery tray (~150 × 87 × 105–107 mm)

4. Terminal orientation matches your cables

FAQs

Q: Is YTX9-BS an AGM battery?
A: Yes—Yuasa lists YTX9-BS as a maintenance-free AGM battery.

Q: What are the ratings for Yuasa YTX9-BS?
A: 12V, 8Ah (10-hr), and 135 CCA.

Q: Should I charge it before installing?
A: Many powersports batteries benefit from a proper initial charge to maximize lifespan (especially after storage/shipping). (Retailers commonly note it may ship unactivated/uncharged depending on pack style.)

Q: My new battery keeps dying—what else should I check?
A: Charging output, loose/corroded terminals, parasitic drain, or long storage without a maintainer are common causes.