Rated 4.82 out of 5 based on 101 customer ratings
(101 customer reviews)

$29.99

YTX9-BS Replaces Honda ATV TRX300EX TRX400EX 300EX 400EX CBR900R RR

Availability: In stock

SKU: YTX9-BS160 Category:
This YTX9-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 YTX9-BS Battery
Voltage: 12 Volt
Amperage: 8 AH
Chemistry: SLA, AGM
Terminal: Nut & Bolt 
Battery Dimensions: 
5.90 in x 3.38 in x 4.25 in
Weight: 6.72 Lbs
Warranty
1 Year
Weight

6.72 Lbs

Width

3.38

Polarity

+ I –

Volts

12V

Height

4.25

Length

5.90

Chemistry

SLA / AGM

CCA

135

Amp Hour

8Ah

Warranty

1 Year

101 reviews for YTX9-BS Replaces Honda ATV TRX300EX TRX400EX 300EX 400EX CBR900R RR

  1. Rated 5 out of 5

    Frederick Nino –

    Bought this battery for my 400ex, good price compared to Walmart prices… They almost wanted 100 for a small atv battery.. good quality so far as well, and it came with all the things you need to mount the battery.

  2. Rated 5 out of 5

    Web Customer –

    Hi I purchased this item for the 4×4’s that requires a bigger battery fir the 150cc. I have 4 Atv’s for the Grandkids to ride. The batteries are priced right work for the entire year and longer. I usually keep a few on hand just in case. They started the 4×4 every time they ride. Great item. Make sure you purchase right battery for right vehicle. Have a great ride and always wear your helmet kids.

  3. Rated 4 out of 5

    Brent H –

    Replaced bad battery that was in my 400ex that would not start the atv in cold weather. Starts right up with this battery.

  4. Rated 5 out of 5

    Ricardo –

    Very satisfied with Mighty Max Battery works perfect, also very grateful with the seller fast delivery. Thanks for the service. keep it up.

  5. Rated 5 out of 5

    Chris F –

    Works just as good as the stocker, seems to charge and discharge as it should.

  6. Rated 5 out of 5

    Marlen Farber –

    I’m glad I purchased this item works great

  7. Rated 5 out of 5

    Timothy –

    Very good and good price for it. Would buy another.

  8. Rated 5 out of 5

    Loganlu14 –

    Came fully charged, plenty of power, fit my 2006 honda 300ex perfectly!!!

  9. Rated 5 out of 5

    WhittyOne 44 –

    Worked well for my ATV

  10. Rated 5 out of 5

    Seth –

    Good product

  11. Rated 5 out of 5

    Seth –

    Good product

  12. Rated 5 out of 5

    MOOSE –

    Last 1 half year’s

  13. Rated 5 out of 5

    MOOSE –

    Last 1 half year’s

  14. Rated 5 out of 5

    Sarah –

    Good battery. Runs well

  15. Rated 5 out of 5

    Stephen1 –

    Worked as described. Great value.

  16. Rated 5 out of 5

    Stephen1 –

    Worked as described. Great value.

  17. Rated 5 out of 5

    jorge M Ricardez jr –

    Battery is very good

  18. Rated 5 out of 5

    Damiano delellis –

    Fits perfectly and works great

  19. Rated 5 out of 5

    Margie Sheppard –

    Battery working fine. JS

  20. Rated 5 out of 5

    Damiano delellis –

    Fits perfectly and works great

  21. Rated 5 out of 5

    Elie B. –

    Very good battery well packaged and promptly delivered

  22. Rated 5 out of 5

    River Crawler –

    Perfect fit. Works great for our quad.

  23. Rated 5 out of 5

    River Crawler –

    Perfect fit. Works great for our quad.

  24. Rated 5 out of 5

    Marcee Cavender –

    4 wheeler

  25. Rated 5 out of 5

    R. O. A. –

    My atv started right up

  26. Rated 5 out of 5

    Marcee Cavender –

    4 wheeler

  27. Rated 3 out of 5

    Web Customer –

    The battery was dead after I installed it charged it fully

  28. Rated 3 out of 5

    Customer –

    The battery was dead after I installed it charged it fully

  29. Rated 5 out of 5

    Curiel family –

    Fits and works perfectly

  30. Rated 5 out of 5

    Curiel family –

    Fits and works perfectly

  31. Rated 5 out of 5

    Mustangs –

    Still going strong no issue

  32. Rated 5 out of 5

    sandfourme2 –

    Worked good

  33. Rated 4 out of 5

    Zachary Vincent –

    Decent battery. It lasted about a year on my atv when it gave up. Perfect fit but I just upgraded to a big lawnmower battery so I’ll no longer need to worry or have to get a push start or jump

  34. Rated 5 out of 5

    BOSS903 –

    Great price! Fit perfectly would buy again!

  35. Rated 5 out of 5

    Jessie Martin –

    Proper fit

  36. Rated 5 out of 5

    Troy W. –

    Just had to buy another one. The first one only lasted 4 years here in Alaska. LOL. This is the only battery that has lasted more than a year in either my 4 wheeler or snogo. I always disconnect the battery before winter storage but all others die before spring. This battery takes the extreme conditions I have here in the Alaska Range. 40 to 50 below and the snowmobile still starts easy. By far this is the best atv battery I have owned. I will continue to buy them.

  37. Rated 4 out of 5

    Web Customer –

    works good

  38. Rated 4 out of 5

    Customer –

    works good

  39. Rated 5 out of 5

    Brian Thomas –

    Just what I wanted

  40. Rated 5 out of 5

    RealPerson –

    Bought one battery for my 400ex 4wheeler , installed and started right up , Great price , then i ordered another for my other 4wheeler , no problems, started right up. Great Batteries for the price

  41. Rated 5 out of 5

    Dale V Dixon Jr –

    Bought one battery for my 400ex 4wheeler , installed and started right up , Great price , then i ordered another for my other 4wheeler , no problems, started right up. Great Batteries for the price

  42. Rated 5 out of 5

    JT –

    Great priduct. Fast shipping.

  43. Rated 5 out of 5

    Customer –

    Great priduct. Fast shipping.

  44. Rated 5 out of 5

    Mare –

    This works great for my fourwheeler

  45. Rated 5 out of 5

    Dave –

    Fit my 300ex perfectly

  46. Rated 5 out of 5

    mushrock –

    All good

  47. Rated 5 out of 5

    Adam –

    Great battery for a great price

  48. Rated 5 out of 5

    Adam –

    Great battery for a great price

  49. Rated 5 out of 5

    Jo T –

    Works great in my honda 300ex quad

  50. Rated 5 out of 5

    Jo T –

    Works great in my honda 300ex quad

  51. Rated 3 out of 5

    Kindle Customer –

    I read other reviews where the battery had to be placed on a block of wood to support it, but I ordered it with the hopes that just maybe. Please note if you order this battery it may not replace the original oem fit battery. For some a block of wood supporting the battery will work. I prefer things be secure on my Honda Foreman and a block of wood holding up a battery is not ideal. The battery seems ok and the price paid was reasonable. The battery charge amount was right on when it arrived. Haven’t installed while I look for a true replacement if there is one to be found. If none found, I will fabricate a mount for the battery to securely sit on.

  52. Rated 3 out of 5

    Customer –

    I read other reviews where the battery had to be placed on a block of wood to support it, but I ordered it with the hopes that just maybe. Please note if you order this battery it may not replace the original oem fit battery. For some a block of wood supporting the battery will work. I prefer things be secure on my Honda Foreman and a block of wood holding up a battery is not ideal. The battery seems ok and the price paid was reasonable. The battery charge amount was right on when it arrived. Haven’t installed while I look for a true replacement if there is one to be found. If none found, I will fabricate a mount for the battery to securely sit on.

  53. Rated 4 out of 5

    Jerry Lynch –

    Starts my Polaris 330 well the fitment not so great but for the money very pleased

  54. Rated 5 out of 5

    cjeff13 –

    I used this as a cheap replacement for a power wheels battery. It works great, holds a charge for a long time

  55. Rated 5 out of 5

    Wyatt furman –

    Good battery great price

  56. Rated 5 out of 5

    C. Smith –

    Fit the Atvs no problem came ready to go past bolt in and ride off- Shipping was quick and the price was awesome would buy from again

  57. Rated 5 out of 5

    Jerald Grant –

    used this battery on a generator and it has preformed flawlesly

  58. Rated 4 out of 5

    Web Customer –

    Product worked fine and I did not have to add the acid to the battery.

  59. Rated 4 out of 5

    Customer –

    Product worked fine and I did not have to add the acid to the battery.

  60. Rated 5 out of 5

    Ranchhand –

    This battery is a great value, as the price is very competitive with WalMart, where I have in the past purchased replacement batteries for my ATV’s. Delivery to my home was ahead of schedule. This battery is sealed, a great plus, and has plenty of power, despite being smaller than my prior batteries. I just placed a short piece of 2 X 4 under the battery to raise it to facilitate wire connections. My only criticism is that the connection posts are deep, and when connecting the battery, you must put a shim under the nut to get it to thread on the screws provided. Nevertheless, this battery deserves a 5-star rating. I highly recommend this battery and the seller.

  61. Rated 5 out of 5

    Ranchhand –

    This battery is a great value, as the price is very competitive with WalMart, where I have in the past purchased replacement batteries for my ATV’s. Delivery to my home was ahead of schedule. This battery is sealed, a great plus, and has plenty of power, despite being smaller than my prior batteries. I just placed a short piece of 2 X 4 under the battery to raise it to facilitate wire connections. My only criticism is that the connection posts are deep, and when connecting the battery, you must put a shim under the nut to get it to thread on the screws provided. Nevertheless, this battery deserves a 5-star rating. I highly recommend this battery and the seller.

  62. Rated 5 out of 5

    brivander –

    I bit smaller than the original battery size on 2002 Honda Foreman so I used a small piece of wood to shim it up, but for $30 it’s an amazing deal.

  63. Rated 5 out of 5

    Mark diamond –

    Works like a champ. Great price.

  64. Rated 5 out of 5

    Vincent cruz –

    Works great on my ltz400

  65. Rated 5 out of 5

    Vincent cruz –

    Works great on my ltz400

  66. Rated 5 out of 5

    Ruth Creighton –

    It fit the hoda 300ex perfect and works perfect. I waited until it was used a lot before writting this. It is a good product and so were the people I bought it from. Recieved in 3 days. Came charged only had to finish the charge and install it. It doesn’t come with electrolyte seperate, it comes ready to use. Very happy with it, specially at the price.

  67. Rated 5 out of 5

    Rick Allison –

    Works great

  68. Rated 5 out of 5

    Rick Allison –

    Works great

  69. Rated 4 out of 5

    trmoto –

    decent battery for the money i would buy again

  70. Rated 5 out of 5

    BC –

    Fit perfect in my XR650L. Works good. Only time will tell how long it lasts but it’s off to a good start.

  71. Rated 5 out of 5

    Travis Mast –

    its amazing to have the 4-wheeler start up so easily! great battery for the money. it really seemed to ship fast. We have only been using it for a shorty period of time so I can’t speak to the longevity of the product but so far we are very satisfied. I really seems to have done the trick. I am hoping this battery lasts longer than the last one. It may the the age of our machine but the last one only lasted a little over a year. Easy to install. Nice looking for a battery.

  72. Rated 4 out of 5

    Shannon Mosby –

    Item was a little big for my 2001 bayou 220 so it was extremely snug in battery compartment. Was still able to make it fit and worked great

  73. Rated 5 out of 5

    Mike Rice –

    So far it’s started my bike every time even when the temp. dropped below 30 degrees outside and that’s something the old batter wouldn’t do.

  74. Rated 5 out of 5

    Mike Rice –

    So far it’s started my bike every time even when the temp. dropped below 30 degrees outside and that’s something the old batter wouldn’t do.

  75. Rated 5 out of 5

    Dennis sahli –

    Very happy fast shipping

  76. Rated 5 out of 5

    Dennis sahli –

    Very happy fast shipping

  77. Rated 5 out of 5

    Nicole Phinn –

    so far so good

  78. Rated 5 out of 5

    Sherri –

    Worked perfect for my 2002 TRX400EX. My dad couldn’t believe the great price I got this for here on .

  79. Rated 5 out of 5

    B Bamford –

    Why would anyone pay three times as much? Dropped them in and instant start!!!

  80. Rated 5 out of 5

    Bruce B. Bamford –

    Why would anyone pay three times as much? Dropped them in and instant start!!!

  81. Rated 5 out of 5

    Rayna F. –

    Good battery, came charged

  82. Rated 5 out of 5

    Josh Bucholz –

    Came charged works great so far!

  83. Rated 5 out of 5

    Mr. Fix it myself! –

    Excellent battery came fully charged and works really well. Would buy another one!

  84. Rated 5 out of 5

    Jip –

    Came charged with new nuts and bolts . couldn’t have asked for more

  85. Rated 5 out of 5

    cecil rhoten –

    Fast shipping great price

  86. Rated 5 out of 5

    HDB –

    Excellent product

  87. Rated 5 out of 5

    Tammy –

    Best price and great quality! Don’t hesitate ordering!

  88. Rated 5 out of 5

    BRUCE ANDREWS –

    So far , so good!If I get 3 yrs out of it great deal !

  89. Rated 5 out of 5

    Simply Dad –

    Battery fit perfectly into my 1992 Honda TRX300EX quad. After an evening on the trickle charger, the battery had a solid charge and fired up the ATV after many long minutes of cranking. My ATV has been sitting for over 2 years, so it was a little rough. Been riding now for a couple of days and the battery is doing fine. Very pleased with purchase.

  90. Rated 5 out of 5

    V.Orwan –

    Excellent product for the ,oney, prompt service!

  91. Rated 5 out of 5

    Casey Little –

    Works well. Shipped quickly. Very satisfied!

  92. Rated 5 out of 5

    michelle –

    Fast shipping. Works great!

  93. Rated 4 out of 5

    lucretia deuerling –

    great battery for the price. works well.

  94. Rated 5 out of 5

    Travis –

    Fits great in my 2002 Honda 400ex. Was charged when it arrived.

  95. Rated 5 out of 5

    Travis –

    Fits great in my 2002 Honda 400ex. Was charged when it arrived.

  96. Rated 5 out of 5

    Jacob miller –

    Does this work with a 2004 honda 400ex?

  97. Rated 5 out of 5

    Daylynn –

    Very nice

  98. Rated 5 out of 5

    randy blevins –

    Great product

  99. Rated 5 out of 5

    Customer –

    Worked perfectly so far

  100. Rated 5 out of 5

    Lisa McCarley –

    Very satisfied with this!

  101. Rated 5 out of 5

    Vanessa –

    Did the job.

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Excellent
Mighty Max Battery
Based on 5436 reviews
Llegaron muy bien y cargadas listas para colocarse
This battery was half the price as a comparable battery from the local farm store and the same size, voltage, and composition.
I have used the Mighty Max replacement batteries in all my UPS’s for years. I’ve never had a problem with them being in use for at least 4-5 years.

Why pay more when Mighty Max is so reasonably priced.
Perfect fit
I am using these two 12V batteries to repack my 24V drop-in battery unit for my electric lawnmower. After installing the replacement cells I was able to try out my mower to my satisfaction.
Original battery had a problem and a new replacement was sent out. That's Great Service and excellent customer relations!!
This battery is for a Stanley Jump box. Perfect replacement. To help future customers I've included some pics of the replacement process. The battery is accessed via the back panel. Remove all the Phillips head screws (2 sizes) and the back panel to access the battery. I used an 8mm wrench to disconnect the wires on the battery.
Poseidon came properly packaged and arrives fast I purchased from Home Depot for my 2018 turbo s dual battery setup going to try these two batteries out and I'll keep you updated on the status and how long they last big system fast car running the dunes it's dune season let's go
Very Heavy Battery with excellent fit & finish. Arrived with full charge.
You receive this paper slip with your new battery- register online and receive an additional 3 months of warranty! You register online and then told - oh! you also have to post an online review with a photo to get those extra months! So, here ya go.
I ordered the batteries from Home Depot. They arrived sooner than expected. They were a performance replacement, and Granny is up and running the seats again!