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Yuasa YTX20-BS 12V Motorcycle Battery

Yuasa YTX20-BS 12V Motorcycle Battery
MDS Price:  £94.95(£79.13 Exc. VAT)
Add Harley Front Terminal Adaptor:  


In stock, immediate despatch  

In stock, immediate despatch

Part Number:  YTX20-BS
Voltage:  12v
Capacity:  18Ah
CCA Rating (EN):  270A
Length:  177mm
Width:  88mm
Height:  156mm

Free Yuasa biker snood with all Yuasa YT/YTX and YTZ Series maintenance free batteries

Under new EPP Regulations, all Yuasa YT/YTX and YTZ Series sealed maintenance free motorcycle batteries are now supplied pre-filled ready to fit


  • Spill-proof design to avoid any leakage
  • Advanced lead-calcium technology for improved starting power
  • Longer lasting design with reduced sulphation
  • Exceptional vibration resistance for the best reliability

Replacement battery for the Harley Davidson 66672-6 and 69991-82B batteries

For the high performance version Yuasa YTX20H-BS to replace a 65948-04 battery click here


  • Manufacturer:Yuasa
  • Battery Type Number: Yuasa YTX20-BS
  • Battery Type: Sealed 12V AGM maintenance-free battery
  • Filling Kit Included: Supplied pre-filled
  • Dimensions: 177mm x 88mm x 156mm
  • Capacity Rating: 18Ah
  • Cold-Start Performance CCA (EN): 260A
  • Maximum Charging Rate: 2.0 Amp
  • Weight (filled): 7.80kg
  • Terminal Layout: Left: + Right: - (With the terminals on the edge nearest to you)
  • Warranty: One year warranty

We Also Stock Equivalent Lightweight Shorai Lithium-Iron Batteries

Replaces The Following Part Numbers

  • Varta 518 902 026
  • Harley Davidson 66672-6
  • Harley Davidson 69991-82B
  • 65991-75
  • 65991-75A
  • 65991-82
  • 66672-96

 To download the full Yuasa automotive range guide click icon

 To download the Yuasa MSDS safety sheet click icon


All prices include free mainland UK delivery - other than certain remote areas that may attract a delivery surcharge.

All Royal Mail deliveries are sent by first class post and are free to all UK postcodes.

Most UPS deliveries are free however remote areas may have a delivery surcharge; these are generally the Scottish Highlands and Islands, most off shore islands and a few other remote or inaccessible parts of the UK.

Certain products are unavailable for post/courier delivery due to restrictions on shipping hazardous substances; these will be available for collection only or in most instances can be shipped via specialist courier or pallet service at an additional charge.

If you have any delivery problems, require technical assistance or would simply like to speak to a human being then please call us.

For further delivery information click here


Does this battery come pre-filled?

Yes these now come pre-filled - under new EPP (Explosives, Precursors and Poisons) Regulations these can no longer be shipped with a separate acid pack so all Yuasa YTX Series maintenance free batteries will be pre-filled prior to despatch.

View our blog post on the new regulations

Does this battery come charged?

They come with around 70% charge from the factory so can be fitted and used immediately as long as your bike is used on a regular basis. For bikes only used on an occasional basis we would suggest a full charge prior to install and on-going maintenance charging.

Can this battery be side mounted?

Yes this battery can be side mounted at up to 90 degrees from the vertical