MTX30L Battery
Road Captain
Joined: Sep 2013
Posts: 575
Likes: 190
From: USA
I purchased one in June which lasted about 30 days. Called Batterymart and they said they never have had that happen with these batteries. Replaced with a new one in July and all is good now after 50+ days and 6,000 miles. Ran the stereo / amp at Sturgis to have music at the camp site. Bike was 30-40 feet away so the volume was up a bit. Two hours straight playing usb and the LED still showed Green, full charge.
Road Warrior
Joined: Nov 2014
Posts: 1,962
Likes: 140
From: NY
Look at close pics of the weaker-thinner looking terminals in mtx30l vs etx30l battery mfg'd by deka batt mfg in usa with much thicker more robust looking terminals to better handle vibration & heat thats in 1 of the links pasted below at good price delivered to your door.
So here are some of the best prices on upgraded more powerful quality Maint free fact activated AGM stock repl batteries.
Stock HD repl fact act mant free AGM battery is 385cca at a whopping $180+.
These same type maint free fact activayed agm batteries are higher output @ 400cca , 500cca & 600cca at $20 , $70 to as much as $100 less for a hi quality Deka 400cca AGM battery then hd's lower output way overpriced repl battery.
See below links for details.
Scott
http://www.ebay.com/itm/Deka-ETX30L-...3D121722699279
http://powersportbatteries.com/more-...nk-etx30l.html
http://www.batterymart.com/p-Big-Cra...L-Battery.html
http://www.ebay.com/itm/121429861963
Last edited by wscott; Sep 5, 2015 at 03:37 PM.
I bought the MTX30l from Battery Mart about 4 months ago. Chinese made as opposed to the Deka which is American made. Have to agree with the above in that the connections aren't a real quality. Having said all that, no problems as yet. I'd probably go American made next time.
Road Captain
Joined: Sep 2013
Posts: 575
Likes: 190
From: USA
I replaced a Deka (rebrand) which lasted about one year with the Mega Crank. I do recal the posts are of better quality but if you don't hang the battery by the wire connections nothing is stressing the posts. Time will tell I guess but my goal is lasting longer than the Deka dieing on me in about 13 months, fortunately while I wasn't on a road trip.
Last edited by Blowby; Sep 6, 2015 at 09:30 AM.
Trending Topics
Elite HDF Member
Joined: Jun 2007
Posts: 3,873
Likes: 13
From: NW Arkansas
I gave $89 + tax for this one from a local supplier. Probably the same battery. If it goes bad I won't have far to go to get a new one and won't have to hassle with shipping. (400 CCA)
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Tourer
Joined: Jan 2012
Posts: 321
Likes: 1
From: St. Louis Mo
Just put one in my Road King. Fired up and ran great. I'd been having an intermittent low speed miss and barely cranking over. Fixed both problems. Only 2 weeks on it though so as far as lasting I have no idea!
Road Warrior
Joined: Nov 2014
Posts: 1,962
Likes: 140
From: NY
Thats mfg by Deka.
And no you dont hang batteries by terminals but with 4+ decades wrenching bikes i have seen mult times where batteries with wearker thinner termianl construction/design can break ,leak ,etc having issues if someone was to crank down a bit harder then they should or from a lot of vibration which some HD's have plenty of which the deka battery with stronger terminals can batter handle.
BTW,i have have not had any deka agm batteries fail in my bikes or other peoples bikes i installed them in over the yrs but have had isseus with expensive fact act agm mainjt free yuasa & Interstate bike batteries other people already bought to have me install crap out in less then 6 months.
Ppoint is no matter how good a mfg is they all have a bad 1 here or there for what ever the reason be it improper handing prior to being bought, very old new stock thats been sitting too long without charge activity leading to premature sulfation & failure ordue to an actual mfg defect .
I have been working on my own & quite a few other peoples bikes over 4+ decades and have used/installed dekas newer gen fac act agm maint free batteries in my bikes and other peoples bike on work too since deka came out with that series agm battery quite a few yrs back and have not had 1 fail early to date with most lasting 5-6yrs on avg with more then a few going &+ yrs at approx $100 vs hds $180 for same type battery.
I put a new deka agm in my friends yami R* with 1700 v-twin 2009 it its still going strong 6+ yrs later.
I also put same type deka in my prior bike 2009 and that was still going strong 6+ yrs later when i sold the bike 4/2015.
The 09 flhtcu i bought 11/2014 that had a new BigCrank agm battery from BatteryMart online (also mfg'd by deka) installed by the prior owner in TX on 5/2013 which is still doing just fine since i bought it 11/2014.
Happy motoring.
Scott
Last edited by wscott; Sep 6, 2015 at 10:03 PM.