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Odyssey ODS-AGM20L Extreme AGM Motorcycle Battery

Odyssey ODS-AGM20L Extreme AGM Motorcycle Battery
MDS Price:  £199.95(£166.63 Exc. VAT)


In stock, immediate despatch  

In stock, immediate despatch

Part Number:  ODS-AGM20L
Voltage:  12v
Capacity:  18Ah
Weight:  5.9Kg
Length:  175mm
Width:  86mm
Height:  155mm

QUANTITY PRICING (Applied in Checkout)

Buy 3+ units and get 5% discount
Buy 10+ units and get a 10% discount



Just launched - new Odyssey Extreme Powersports battery - replaces YTX20HL / GYZ20L / GYZ20HL


  • High performance AGM battery with Odyssey Thin Plate Pure Lead (TPPL)
  • Rugged construction with superior protection against shock and vibration
  • Non-spillable maintenance free AGM design
  • Pure lead plates for increased power compared with conventional lead acid batteries 

Full Specification

  • Voltage: 12V
  • PHCA (5 sec): 675A (Pulse Current)
  • CCA (EN): 275A (Cold Start Performance)
  • Nominal Capacity: 18Ah (20 Hr Rate)
  • Dimensions: 175mm x 86mm x 155mm
  • Weight: 5.9Kg
  • Terminal Type: M6 Receptacle
  • Terminal Position: (-) Left / (+) Right - with terminals on the side facing you
  • Warranty: Three year manufacturer's warranty
  • Commodity Code / HS Code - 85071020
  • Country of Origin (COO) - US, United States

Why choose Odyssey:

Odyssey Extreme Racing batteries are uniquely designed for extreme starting power and will out-perform most other starter batteries on the market. To achieve this they are made using very thin 99.99% pure lead plates which give much more power than traditional batteries that use thicker lead alloy plates or are made using recycled lead.

This design philosophy means that you can use a much smaller battery to start your engine than before or you can use one the same size as before that will give you much better starting performance. It also results in very high voltage retention characteristics which means that the battery will go flat less quickly than a traditional battery. You should however remember that a smaller battery will inevitably have a lower energy storage capacity (Ah) than a larger one but this will not affect the starting performance as long as the PHCA rating on the Odyssey battery that you choose is similar to or higher than the CCA rating on traditional battery that you are replacing.

The Odyssey PHCA rating it is a specific measurement of the peak current that the battery can supply over a five second period and can be compared with the CCA rating on a traditional battery.




Replaces the following models

Yuasa YTX20HL-BS
Yuasa GYZ20L
Yuasa GYZ20HL




 To download the Odyssey AGM20L data sheet click icon

 To download the Odyssey product range guide click icon

 To download the Odyssey user manual click icon

 To download the Odyssey MSDS safety sheet guide 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



There are currently no FAQs for this product; if you have any questions please contact us