Battery
Stellar HDF Member
Joined: Aug 2012
Posts: 2,664
Likes: 184
From: Indiana, USA
I have had excellent luck with absorbed glass mat (AGM) usually getting 7 to 10 years out of the battery using a Battery Tender in the off season.
The old lead acid batteries were lucky to see 2 years. What do you expect to get out of a Lithium battery and does the cost offset enough to justify?
The old lead acid batteries were lucky to see 2 years. What do you expect to get out of a Lithium battery and does the cost offset enough to justify?
Road Master
Joined: Nov 2018
Posts: 874
Likes: 159
From: FLORIDA
I have had excellent luck with absorbed glass mat (AGM) usually getting 7 to 10 years out of the battery using a Battery Tender in the off season.
The old lead acid batteries were lucky to see 2 years. What do you expect to get out of a Lithium battery and does the cost offset enough to justify?
The old lead acid batteries were lucky to see 2 years. What do you expect to get out of a Lithium battery and does the cost offset enough to justify?
Seasoned HDF Member
Joined: Jun 2012
Posts: 6,165
Likes: 2,578
From: CT/FL
I have a lithium battery in my chopper. The AGM batteries would only last a season and a half. Probably because they were inside the horseshoe oil tank, and maybe undersized for the 96" S&S motor. This will be the fourth season on the lithium, and it still cranks better than the AGM ever did. Key is to use a cutoff switch to prevent killing the battery when stored.
I'll probably get another lithium if I convert my 72 FX to electric start, so it fits in the original battery box.
I'll probably get another lithium if I convert my 72 FX to electric start, so it fits in the original battery box.
Advanced
Joined: Nov 2024
Posts: 80
Likes: 13
Great post. My lead acid battery's are not very good owned my 1978 1/2 80c for five years and bought 4 battery's best one was from NAPA it lasted almost two years. One only lasted 6 months. Now Earth X offers a battery. My Harley charge system is compatible but my off season tender will not work. Their tender is not that expensive. Question is have any of you guys used the.Earth X Harley Battery
? AJ
? AJ
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Club Member
Joined: Mar 2009
Posts: 66,145
Likes: 51,486
From: Niles Canyon Ca.
Wouldn't suggest it without upgrading the charging system to the later 32amp unless it's a kick only bike with a small battery. Need dedicated chargers, trickle included, old style will damage them. They need to be "woke up", meaning turn the lights one for a few minutes to load the battery before they will throw full amperage, and the big one let it drop below a certain voltage it's toast they won't come back from that I learned the hard way. Ran a big $$$$ Antigravity lith. in mine, I'll do another when the compression releases go in later this winter.
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Club Member
Joined: Mar 2009
Posts: 66,145
Likes: 51,486
From: Niles Canyon Ca.
I have had excellent luck with absorbed glass mat (AGM) usually getting 7 to 10 years out of the battery using a Battery Tender in the off season.
The old lead acid batteries were lucky to see 2 years. What do you expect to get out of a Lithium battery and does the cost offset enough to justify?
The old lead acid batteries were lucky to see 2 years. What do you expect to get out of a Lithium battery and does the cost offset enough to justify?
Seasoned HDF Member
Joined: Jun 2012
Posts: 6,165
Likes: 2,578
From: CT/FL
Wouldn't suggest it without upgrading the charging system to the later 32amp unless it's a kick only bike with a small battery. Need dedicated chargers, trickle included, old style will damage them. They need to be "woke up", meaning turn the lights one for a few minutes to load the battery before they will throw full amperage, and the big one let it drop below a certain voltage it's toast they won't come back from that I learned the hard way. Ran a big $$$$ Antigravity lith. in mine, I'll do another when the compression releases go in later this winter.