When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Why on earth would you connect a tender or charger after every ride? If you've added extra lights or something that keeps you running off the battery, you need to deal with that issue rather than connecting a charger every time you hop off it. Bikes are no different than cars or trucks.
The reason would be that batteries will loose a percentage of their charge every day even if there is is not a draw on it. Batteries sitting in a discharged state can be damaged beyond repair.
It is my belief that using a battery maintainer on any vehicle, be it motorcycle, car, truck, boat, lawn mower, etc., is a good preventative maintenance idea. But that said, if you choose not to do so, it's your choice.
I've also read several places that most modern bikes will have accessories such as radios and clocks that will continue to draw a small amount of current even when working as designed, even if this is just a few milliamps.
Below is an excerpt from Deltran (manufacturer of the Battery TenderŽ brand of products). The link to the entire web page is also shown.
An automatic, well-regulated, temperature-compensated charger can keep the battery fully charged and at the same time minimize the risks of long-term damage to the battery due to either under-charging or over-charging. The alternative is to let the battery internal losses run their course, which for most batteries means that they are fully discharged within a few months. If you forget to recharge them periodically, and they become severely over-discharged, even due to only internal losses, the plates will become severely sulfated. For many batteries, that means that they are permanently damaged. Recommendations for Using the Battery Tender Plus in Continuous Float Mode Charging: The line regulation characteristics of the Battery Tender Plus are excellent; less than 1% for line voltage between 115 VAC and 125 VAC. This charger is temperature compensated and it has a special charging algorithm optimized for sealed, gas-recombinant, AGM, lead acid batteries. Numerous motorcycle owners have reported to Deltran over the years that their batteries have lasted 3 years or more. Before using the Battery Tender charger, they would have to replace their batteries as often as every 6 months.
Alright stupid follow up question. On the pigtail from the battery for the tender, how do I know which is positive? The exposed or the female part of the connector from the battery
Although, if you got 12 years out of a motorcycle battery... maybe I should keep mine on a tender!
What kind of math is that?
I count 8 years myself(still a great battery life)......but I'm using old school addition/subtraction that I learned in grade school. This is still the year 2012 isn't it, or did I fall into some kind of coma and lost 4 years? lol
Last edited by gotnspikes; Apr 25, 2012 at 05:09 PM.
So I pulled the seat over the weekend to check my tender hookup. It was fine. Pulled the 7.5a fuse, again Fine. Routed the plug to where I wanted it, installed seat....NOW THE TENDER WORKS FINE...go figure
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.
Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.
Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.