Yuasa Motorcycle AGM | Maintenance Free & High Performance | 310A 18.9Ah

Motorbike Batteries

175 × 87 × 155 mm

IN STOCK (16 in stock)

£108.00incl. VAT


Yuasa Motorcycle | AGM

Maintenance Free | High Performace



YTX20HL-BS | 310A 18.9Ah


Terminal Type and Layout:

terminal diagram Terminal Diagram


If high power is top priority in a replacement battery look to Yuasa’s High Performance Maintenance Free batteries. Yuasa means more power less maintenance and longer life. Yuasa’s High Performance Maintenance Free batteries are your best choice for motorcycles utility vehicles scooters ATVs ride-on mowers personal watercraft and snowmobiles.

All of the features of standard Maintenance Free batteries PLUS Increased Power – Up to 30% more cranking amps thanks to a radial grid design and additional plates.

Yuasa Cross Section Image



  • 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 Yuasa’s High Performance 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
  • VRLA batteries hold voltage longer and need less charging in standby or storage mode

1 Year Warranty Icon






Cast Grid

Special Grid Design

Severe vibration resistance & improved conductivity

Active Material

Proprietary Formulation

Reduced shedding maximum utilisation & long service life

Pasted Plates

Specified Thickness & Weight

Ensures vibration resistance through precise compression & proper service life through specified active material balance

Dry-Charged Plates

Tank Formed & Dried Plates

Properly dried plates in a sealed battery have a virtually limitless shelf-life while still retaining 70-80% state of charge when initially filled with acid

Top Lead Connections

Through-Partition Construction Large Straps

Shorter current path for increased electrical conductivity & higher starting currents heavier parts for maximum durability

Case-Cover Seal

Thermal Bonded Plastic

Air tight seal to prevent air ingress & acid seepage

Terminal-Cover Seal

Patented Poly-Seal Terminal

Eliminates acid seepage reduces corrosion & extends battery life

Case & Cover


Superior resistance to gasoline & oil impact resistant in extreme
weather conditions


Sulphate Stop (Some models)

Sulphate stop added to reduce the solubility of lead into the acid which then reduces battery sulphation potential



Leaf or Envelope Separator

Polyethylene with glass mat sheet bonded for compression to withstand severe vibration conditions



Absorbed Glass Mat

Absorbs acid while creating cell compression for extreme vibration resistance

Top Lead Alloy

Calcium Alloy

Increased weld strength & severe vibration resistance

Vent System

Valve & Flame Arrestor

Valve relieves excess pressure to prevent bursting flame arrestor prevents internal combustion

High Performance Maintenance Free

Grid System

Computer-Designed Radial Grids

Increased conductivity for higher starting wattage increased vibration resistance



There are no reviews yet.

Be the first to review “YTX20HL-BS”

Your email address will not be published. Required fields are marked *