Just picked up a 2018 Street 750; which most likely Will be sitting in the non-climate controlled garage till spring. I have a battery tender which I use for my previous board bikes that have the usual alligator clamps. Can I use this same tender for my Harley and if yes how do I connect it to the pigtail? Is there a separate adapter I will need?
Or do I just have to connect the alligator clamps to the battery terminals like I did with my sport bike?

 

First and foremost one has to consider if you whimsically swapping terms and definitions between tenders
and trickles. That all being said and recognized most of the populace has switched to tenders rather then
the trickles as they are much more constant and will top off rather than driving on.
When it comes to connections it does not matter so much as to where or how as long as you have est continuity via the alligators or the
plugin style.
Polarity is a concern as you do not want to be driving the little electrons in the wrong direction.

 

Take some time to determine what technology battery is installed in your bike. Is it Wet Cell or AGM? Wet Cell batteries can be charged at rate of 750mA. AGM can also be charged using a 750mA but will not charge to 100% (80% max). It's better to get a tender that can supply 1.25A for AGM batteries. I have both. Also don't leave a tender on you bike all winter. Change it until the light turns green/full changed and remove it for a week. Then recharge it again. Shampoo and repeat.

 

First time I heard that one.

 

 

Me too, I leave the .75 amp tender hooked up to my bikes all the time unless their being ridden, and have for years with no ill effects. My .75 amp tender has no problem fully charging the battery in the Sportster, and didn't with the VLX before it. It will flash green (80% charged) for about 5-10 minutes maybe and then goes solid green (100% charged).

 

Yes and it should already be there on right side. True tenders cycle the battery . They claim is makes them last longer.

 

Same routine for me. My Battery Tender Junior (.75 amp) keeps my AGM battery @ 100% charged when not riding.

I was hoping the poster would pop back in and explain the 80% comment, as well as the advantages of disconnecting the tender for a week after the light turns green.

 

I can't find the link that I once had about AGM vers WET batteries but here's some more information. Many AGM/GEL cell battery chargers have microprocessors that collect information from the battery and adjust the current and voltage accordingly. Some have different settings for charging flooded, gel and AGM batteries. Older style battery chargers could overcharge and kill AGM batteries. Regarding charging cycles. Unused Wet/AGM/GEL routinely charged can prevent sulfation.

 

Both of your Battery Tenders will charge an AGM battery to 100%. The only difference is the 1.25 amp tender will reach 100% in a shorter period of time, compared to the .75 amp tender.

As far as taking it off for a week goes. The green light indcates storage/float mode. In essence the microprocessor is taking it off for a week (or more) for you.