YTX20L-BS - 12 Volt 18 AH, 270 CCA, Rechargeable Maintenance Free SLA AGM Motorcycle Battery
YTX20L-BS - 12 Volt 18 AH, 270 CCA, Rechargeable Maintenance Free SLA AGM Motorcycle Battery
YTX20L-BS - 12 Volt 18 AH, 270 CCA, Rechargeable Maintenance Free SLA AGM Motorcycle Battery
YTX20L-BS - 12 Volt 18 AH, 270 CCA, Rechargeable Maintenance Free SLA AGM Motorcycle Battery
YTX20L-BS - 12 Volt 18 AH, 270 CCA, Rechargeable Maintenance Free SLA AGM Motorcycle Battery
Rated 4.93 out of 5 based on 15 customer ratings
(15 customer reviews)

$54.99

YTX20L-BS Battery for Yamaha Big Bear Grizzly Kodiak YFM400 400, 450

Availability: In stock

SKU: YTX20L-BS256 Category:
This YTX20L-BS is a sealed lead-acid (SLA) absorbed glass mat (AGM) rechargeable battery. AGM and GEL batteries are lead-acid and of the same battery chemistry. This battery comes already charged, sealed, maintenance free, and ready to install.
Premium quality absorbed glass mat technology (AGM) is ideal for  ATVs, Motorcycles, Personal Watercraft, Jet Ski’s, Snowmobiles and more.
Specifications of the YTX20L-BS Battery
Voltage: 12 Volt
Amperage: 18 AH
Chemistry: SLA, AGM
Terminal: Nut & Bolt 
Battery Dimensions: 
6.88 in x 3.50 in x 6.13 in
Weight: 11.79 Lbs
Warranty
1 Year
Amp Hour

18Ah
CCA

270
Chemistry

SLA / AGM
Height

6.13
Length

6.88
Volts

12V
Polarity

– I +
Weight

11.79 Lbs
Warranty

1 Year
Width

3.50

15 reviews for YTX20L-BS Battery for Yamaha Big Bear Grizzly Kodiak YFM400 400, 450

  1. Rated 5 out of 5

    Matt –

    Works great

  2. Rated 5 out of 5

    gary pangione –

    good item good price

  3. Rated 5 out of 5

    robert –

    Old Battery/ new Battery same Size Easy install ????

  4. Rated 5 out of 5

    boaz22 –

    Great product. Easy to install. Fit perfectly. Longetivity TBD. SO FAR TO SO GOOD.

  5. Rated 5 out of 5

    Jessica cortez –

    Easy to install and a great price.

  6. Rated 4 out of 5

    Mrs. Young –

    Works fine just make sure your running it regularly to keep the charge

  7. Rated 5 out of 5

    RLM –

    YTX20L-BS – Very good battery for a good price. Mighty Max was very responsive to a shipping problem that was no fault of their own. Happy with their product and service.

  8. Rated 5 out of 5

    Stretchey –

    Installed in the Yamaha Big Bear starts up right away when COLD

  9. Rated 5 out of 5

    Calvin Aaron –

    Came charged and ready to go

  10. Rated 5 out of 5

    Calvin Aaron –

    Came charged and ready to go

  11. Rated 5 out of 5

    Chris haynes –

    Great battery for big bear 400

  12. Rated 5 out of 5

    Chris haynes –

    Great battery for big bear 400

  13. Rated 5 out of 5

    Web Customer –

    Works great hopefully last a long time

  14. Rated 5 out of 5

    Customer –

    Works great hopefully last a long time

  15. Rated 5 out of 5

    marcia meyer –

    Great fit and so far it is starting my Yamaha with no problem.

Only logged in customers who have purchased this product may leave a review.

Excellent
Mighty Max Battery
Based on 3474 reviews
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John & Cathy
Arrived quickly. Even got a sticker with it.
Sean Chacon
Solid looking battery, came well packaged. Have used their battery before for my lawnmower and now looking forward to see how it lasts in my snowmobile.
larry scervino
I can't believe it less than 48hrs since I ordered from Walmart and it's in the machine. What more can I say except great price.
Thanks Larry
Paul Major
Item as described and perfect fit and arrived on time
Manny Jaramillo
Battery arrived in a good shape package strait to my door steps
Robin Lauer
Arrived just in time to power my generator here in the cold Maine winters. Excellent service!
Shutter Dog Homestead
Arrived quickly from WALMART.COM. Perfect size and proper placement in my generator. Installation was easy. Generator fired right up. Battery came fully charged.
Larry Geiger
New battery. Ready for cold weather!
Harmon Chandler
So far these Might Max batteries are good but it’s only the first day and they were on charge for 12 hrs. I’ll have to come back and do an update at some point in time. Ordered them on Amazon and got them the next day. I was encouraged by Mighty Max to make this google review and post pictures to extend my warranty for 3 months but there is no way to post pictures 🤣🤣🤣 It’s been a few months and I was able to go back and edit, so here is a video I made, the rest of the photos I have deleted. Batteries are still going strong. Update 12-11-2025
Carl Ruckinger
They arrived within 2 days of ordering them packaging was really good I haven't put them in my MX350 yet I hit them with my multi meter fresh out of the box and got 12.4v on both batteries so that is good

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