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May 10, 2015 | 10:06 AM

tinsnips

Thread Starter

Cruiser

Joined: Apr 2010

Posts: 163

Likes: 4

From: northern calif

new battery

whats the best replacement battery out there. mine is 7 yrs old and still working but just getting ready

May 10, 2015 | 10:11 AM

mkguitar

Extreme HDF Member

Joined: Sep 2010

Posts: 14,744

Likes: 402

From: Phoenix '53, '88, '09 Big Twins

alot of us use the big crank- about $100 shipped from battery mart on ebay or amazon.

while you are at this, check the cable connections at both ends, clean and tight

a weak battery can damage the charging system- but yours could have some life in it- charge it on teh bench and load test it at autozone

mike

May 11, 2015 | 01:52 PM

dplantz

Intermediate

Joined: Jun 2012

Posts: 43

Likes: 0

From: Georgetown,Texas

http://www.etx30l.com/

Got 3 years on mine, good battery, decent price $119 and FREE shipping

May 11, 2015 | 02:16 PM

xtremer-pxl

Cruiser

Joined: Aug 2009

Posts: 118

Likes: 1

From: Arkansas City, Kansas

And the Big Crank Battery is made in the USA

May 11, 2015 | 03:21 PM

harleycharlie1992

Unofficial HDF Chaplain

Joined: Dec 2009

Posts: 21,153

Likes: 18,076

From: san diego

Interstate battery, use the premium one more cranking amps excellent battery, thats all we use in the Mercedes/BMW cars. the one for the bikes are equally good, and nationwide service should the occasion ever asrise

May 11, 2015 | 05:30 PM

Sonny81

Advanced

Joined: Jan 2014

Posts: 91

Likes: 4

From: Italy

Someone knows the Magna Powers batteries?

May 11, 2015 | 06:28 PM

Ride my Seesaw

Grand HDF Member

Joined: Jan 2010

Posts: 3,514

Likes: 1,992

From: Vancouver BC

Whichever lead acid battery you choose the most important thing you can do is slow charge it with a trickle charger for 8 hours or better. Do this before you ever pull current from the battery, this way you'll get at minimum 5 trouble free years out of it. Most battery places will just pour in the acid and distilled water and install it, worst thing you can do. When a battery is freshly prepped or just bought off the shelf it has about 70% current capacity. Slow charging gently brings it up to its full capacity, however if you just drop it into service and promptly start your vehicle it will shorten the new battery's life considerably. Quick charging too for the initial charge will also overheat and torque the plates and chemicals. Unfortunately most people do just this, they go into a store to purchase a battery then immediately install it and ride off only to find the battery lasts only a year or two. Slow charge it first and you will get years of trouble free service, guaranteed.

Last edited by Ride my Seesaw; May 11, 2015 at 06:31 PM.