Yuasa YB4L-B Powersport Motorcycle Battery



Fitted bundle deal

includes Accessories + Fitting

Item: 965426

Yuasa YB4L-B Powersport Motorcycle Battery


How can I get it?

FREE Click & Collect

Batteries Fitting
  • Description
  • Specification
  • Reviews
  • Delivery Options
  • Help & Advice
  • Buying Options
  • Click here for fitments for your Motorbike

    Yuasa YB4L-B Powersport YuMicron Battery

    Includes acid pack

    The Yuasa YB4L-B Powersport YuMicron Battery is ideal for motorcycles, scooters, ATVs, snowmobiles, ride-on mowers, laden touring bikes and jet-skis. The high-tech, power-boosting design ensures this battery has 30% more cranking power than conventional batteries.

    Yuasa YB4L-B Powersport YuMicron Battery Extra Info

    • Heavy duty glass mat
    • Includes acid pack
    • Special thin separator
    • Through-the-wall intercell connector maximises starting power and minimises resistance
    • Sulphate Stop curbs plate sulphation – and provides longer life
    • Starting power (CCA): 45Amps
    • Capacity Ah: 4.0 (10hr) 4.2 (20hr)
    • Dimensions (LxWxH): 120 x 70 x 92mm
    • Weight with acid: 1.5kg
    • Acid volume: 0.3 litres
    • Charge current: 0.4 Amps

    Please check compatibility with your vehicle before purchase

    Additional Information

    Please note that this battery may be substituted for an equivalent Bosch battery of the same specification

  • Type: YuMicron Battery
    AH Value: 4.2
    Bench Charge: 0.4
    Dimensions (LxDxH): 120x70x92mm
    Guarantee: 2 Years
    Startup Power: 45
    Weight (kg): 1.5
  • Yuasa YB4L-B Powersport Motorcycle Battery is rated 4.7 out of 5 by 9.
    Rated 5 out of 5 by from Just what I wanted I needed a small battery to run somemodels. This was perfect. 4 stars for performance as I haven't had very long, but Yuasa have a good name and this battery came with a two year warranty.
    Date published: 2017-07-26
    Rated 5 out of 5 by from Yuasa battery My c90 honda battery died after 10 years ,i wanted to replace it with exactly the same ,i checked website and it was in my local halfords ready to go within the hour .
    Date published: 2017-06-05
    Rated 4 out of 5 by from Quick availability saves the day I had to kick start my Vespa on a few damp mornings during the summer. I should have ordered a battery immediately. I didn't, so on a Thursday night at 7pm in a damp, dark car park it died completely and wouldn't kick start and I had to call the AA to get me going. If you order batteries via most online outlets they take a few days to arrive and then you have to charge them. I was delighted to find Halfords had scooter batteries and bike chargers. I reserved online at 11pm on a Thursday night and collected after work on the Friday. Putting the acid into the battery is a bit of a fiddle, I overfilled and had to remove some with a medical syringe. I struggled to see the levels. The instructions on the packet are poor but You Tube has some good videos for a beginner. I understand that once filled and ready the battery will start a bike, but most biker/dealer sites advise you to trickle charge the battery to get it to full power and to ensure the battery has a long life. I didn't realise that scooter batteries need much more love and attention than a car battery. There's some great info online so I hope to have uninterrupted riding wit battery issues in future. Well done Halfords for such quick service and availability at a good price.
    Date published: 2015-08-16
    Rated 5 out of 5 by from Moped 12v battery Very good value and excellent service. Ordered online and picked up the battery in-store the next day.
    Date published: 2015-06-10
    Rated 5 out of 5 by from Back on the Road My daughter's scooter died on her. As we had been having problems with her battery I looked on-line and reserved one at my local Halfords to be collected that day. The battery was waiting for me to collect, plus I had some useful advise from the assistant on what to do with the battery, which involved adding the acid and charging. I didn't even have to ask, he offered it to me. The battery has put my daughter back on the road again, simply, easily and without fuss thanks to Halfords
    Date published: 2015-01-03
    Rated 4 out of 5 by from Quick, easy, cheap! Staff very helpful, product was well priced, easy to find and hassle free! Worked perfectly.
    Date published: 2014-11-17
    Rated 5 out of 5 by from Works fine. Not much I can say after few weeks of use. After filling with acid and charging my scooter started straight away and everything works as is should so far.
    Date published: 2014-10-20
    Rated 4 out of 5 by from Perfect substitute for OEM item. I bought this item to replace the dead battery on my son's old quad bike. It dropped straight in and did the trick. Replacement item from the manufacturer was double the price of this battery. It makes sound economic sense to me.
    Date published: 2014-08-17
    • y_2018, m_2, d_21, h_22
    • bvseo_bulk, prod_bvrr, vn_bulk_2.0.7
    • cp_1, bvpage1
    • co_hasreviews, tv_0, tr_9
    • loc_, sid_965426, prod, sort_[SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_halfords
  • UK Delivery

    Standard Delivery

    £3.99 or FREE next day delivery on orders over £40 (Halfords products only)


    UK Delivery

    FREE Next Day Delivery on orders over £40

    Your delivery date will be communicated at checkout and on your confirmation email. Next day delivery not available on all products. Excludes bulky items.


  • You can buy this product from one of our carefully selected Approved Partners. The full list of options available are below. Simply add your chosen option to your basket and proceed to checkout when you're ready.

    You can purchase products supplied by Halfords and selected other suppliers on halfords.com.

    Checkout is always via halfords.com and all payment will be taken via halfords.com. In checkout the products will be split into separate deliveries for each supplier.

    Showing 1 - X of our buying options
    Price Seller Info Purchase

Some of the parts we sell here at Halfords have been reconditioned. These will carry a Refundable Deposit or an extra surcharge amount. When you add one of these reconditioned items to your basket, we'll add this extra cost automatically.

Once you've sent us your old item we'll check it over, and then refund you the full surcharge as long as everything is ok.

Before you return your old unit please make sure it's in re-serviceable condition. So if you're returning caliper casings, you'll need to double check they aren't badly damaged or broken. If the part you've sent is found to be unserviceable, we reserve the right not to refund the surcharge.

Please note that if you're returning your old unit to our National Returns Centre then this will be at your own expense.

Yuasa Motorcycle Batteries

Yuasa YB4L-B Powersport Motorcycle Battery

£22 Yuasa YB4L-B Powersport YuMicron Motorcycle Battery is designed to optimise starting power.