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Yuasa SY50-N18L-AT 12V Motorbike Battery

Yuasa SY50-N18L-AT 12V Motorbike Battery
MDS Price:  £89.95(£74.96 Exc. VAT)


Lead time 5-6 days  

Lead time 5-6 days

Bar Code:  4016987109694
Part Number:  SY50-N18L-AT
Voltage:  12v
Capacity:  20Ah
CCA Rating (EN):  260A
Length:  205mm
Width:  90mm
Height:  162mm



From July 1st 2018 under new EPP (Explosives, Precursors & Poisons) regulations, we can no longer supply sulphuric acid, so all "dry charged" Yuasa motorcycle batteries will be supplied without acid. You will have to get the battery filled locally.


  • Manufacturer: Yuasa
  • Battery type number: SY50-N18L-AT
  • Battery type: Dry charged battery with sensor
  • Filling kit included: No
  • Dimensions: 205mm x 90mm x 162mm
  • Capacity rating: 20Ah
  • Cold-start performance: 260EN
  • Maximum charging rate: 2.0 Amp
  • Weight (filled): 6.5Kg
  • Vent position: Left side (With the terminals on the edge nearest to you)
  • Terminal layout: Left: - Right: + (With the terminals on the edge nearest to you)

Replaces the following battery part numbers

  • SY50-N18L-A
  • SY50-N18L-AT
  • 520-016-020

 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 with the electrolyte acid pack?

No this battery is supplied dry as we cannot ship the acid separately under the new EPP Regulations so you will have to get the battery filled locally. If you are collecting from our warehouse, we can pre-fill the battery for you.

What are the EPP Regulations?

The EPP (Explosives, Precursors and Poisons) Regulations introduced on 1 July 2018 make it illegal to supply or ship sulphuric acid at more than 15% concentration to any member of the public - so all "dry charged" batteries now have to be shipped without acid.

View our blog post on the new regulations

Does this battery come charged?

They come with around 70% charge from the factory so once filled they 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.