Battery Tender Question

Electrical issues
Forum rules
Please do not start new topics here, but here: New Panhead and Flathead topics
Post Reply
Posts: 391
Joined: Fri Apr 02, 2004 5:05 pm
Been thanked: 3 times

Battery Tender Question


Post by King » Mon Nov 03, 2008 4:23 pm

Hi All

I have an 800 milliamp battery tender attached to my 12V 11 amp battery. As I’m on the road a lot it will be attached to the battery for weeks at a time. When I came back on Sat. I noticed the battery was warm to the touch, not hot, but detectibly warm. I checked the fluid levels and they were all full. I disconnected the tender and the battery cooled, hooked it up again and it became warm. The tender supposedly charges (yellow light lit) till it reaches ~12.3 v and then goes into a maintenance mode (green light lit). When I observed the warmth, the green light was on indicating it was in “maintenance mode”. Have any of you noticed the same situation and is it a problem?


Posts: 947
Joined: Tue Jan 08, 2008 12:32 am
Bikes: 56 FLH, 2007 FLHRCI
Location: Belleville, Ontario, Canada
Has thanked: 48 times
Been thanked: 27 times

Re: Battery Tender Question


Post by steve_wood » Tue Nov 04, 2008 1:05 am


How old is your battery? If you disconnect it from the tender, does it keep its charge? If you have a battery that isn't keeping a charge, then it will overheat when you charge it....

I have a couple of tenders, and i use them in the winter, but once the battery hits the "charged" level, i only use the tender for maybe a few days per month.

Post Reply

Return to “Electrical”