Maintenance Free
Yuasa YT4B-BS 12V Maintenance Free Battery
Capacity Ah (20-HR): 2.4 CCA @ -18C: 40


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
Tech Spec

Additional Information

Pack Type CP
Capacity Ah (10-HR) 2.3
Capacity Ah (20-HR) 2.4
Weight with acid (kg) 1.1
Acid volume (litre) 0.12
Charge current (Amps) 0.3
Terminal Type 13
Length (mm) 114
Width (mm) 39
Height (mm) 86.5
NCC Class N/A
Feature Range Maintenance Free
Front Side Top
Assembly Figure