Maintenance Free
Yuasa YT9B-BS / YT9B 12V Maintenance Free Battery
Capacity Ah (20-HR): 8.4 CCA @ -18C: 120


VRLA (Valve Regulated Lead Acid) means a battery that's perfect for people who have better things to do than battery maintenance! Our permanently sealed VRLA battery never needs refilling; however, it still needs periodic charging. Ideal for motorcycles, scooters, ATVs, riding mowers and personal watercraft.


  • Spill-proof design means virtually no possibility of leaks
  • Advanced lead-calcium technology pumps up starting power
  • Sulphation retardant dramatically reduces battery-killing plate sulphation
  • Long lasting which means Yuas's Maintenance Free batteries will last up to three times longer than conventional batteries
  • Exceptional resistance to vibration makes Yuasa the most reliable battery on the market today
  • And, VRLA batteries hold voltage longer and need less charging in standby or storage mode

YT9B-BS = CP / YT9B = WC

Tech Spec

Additional Information

Pack Type CP/WC
Capacity Ah (10-HR) 8
Capacity Ah (20-HR) 8.4
Weight with acid (kg) 3.4
Acid volume (litre) 0.4
Charge current (Amps) 0.8
Terminal Type 11
Length (mm) 150
Width (mm) 70
Height (mm) 105
NCC Class N/A
Feature Range Maintenance Free
Front Side Top
Assembly Figure