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Battery Tender Plus Charger

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Battery Tender Plus Charger

The Battery Tender Plus is a 1.25 amp battery charger designed to fully charge a battery and maintain it at proper storage voltage without the damaging effects caused by trickle chargers. Included is a quick connect ring terminal harness for hard to reach areas and alligator clips for an alternate connection.


  • Temperature compensated to ensure optimum charge voltage according to ambient temperature
  • Automatically switches from full charge to float charging mode
  • Battery Tender at 1.25 amps will charge as fast or faster than any 3 amp charger available
  • Reverse Polarity Protection to ensure user safety. Red & Green Lights Alternately Flash in this condition
  • Complete 4-step charging program (Initialization, Bulk Charge, Absorption Mode, Float Mode)
  • 10 year Warranty
Product Style RevZilla Item # Manufacturer Product # Availability
12 Volt 177709 021-0128/0210128 In Stock: Ships within 24 hours


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Battery Tender Plus Charger 5 5 19 19
Very useful in emergencies too I use it in my garage to keep my battery charged. Also use it it when the battery is low to charge it up. Ine time I had the battery die on me, I got my car, hooked it up for 15 minutes and I was up and running. I love it. September 28, 2015
Works on everything Got it for my bike, used it on lawn mower and my daughter's four wheeler. September 21, 2015
works as requested Good product. They want 37 more characters so here they are lol August 17, 2015
does its job Very nice little product. To fully charge a dead battery I charge overnight. Great for battery storage as well. Would highly recommend. July 27, 2015
BT rocks! I have no idea why I listened to a parts dept person to sell me another brand of battery charger. Needless to say it did not charge my battery enough. I take my bike out to warm up when the winter weather permits. I barely got the bike turned over. Went straight to Revzilla and obtained the leader in battery chargers, Battery Tender. This is just my opinion, but I trust this source. Never again will I buy anything else. February 24, 2015
Excellent to keep my battery juiced up for the winter Small design but efficient. All cables you need. Good enough for a big twin and sport bikes. February 2, 2015
Simple to use and effective. I am not the most technically inclined but found this product very easy to use and it works just like it says it would. I have not charged a battery with it but like that I could if I needed to. January 21, 2015
Excellent product...now have one for each bike. I bought a Battery Tender for my Harley Lowrider in 2004. I use it from about November until I can ride again some time in April. I bought a second bike in 2009 and would switch the tender between bikes over the winter. I decided to get this second unit for my 2011 BMW R1200 GSA. You may hear that BMW's Canbus system won't allow the use of the Battery Tender, but I have not had any problems. I am also still using the original battery in my eleven year old Harley. January 20, 2015
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Battery Tender Plus Charger
Already Asked: 6 Questions, 44 Answers
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RevZilla Store asked: Why did you choose this?
Danny S: Seemed like what I needed. Hope I'm right. Nov 23, 2015
Christian T: Know the brand Nov 7, 2015
Mathias K: ambient temperature option Oct 10, 2015
Earl S: to maintain and extend the efficiency of the battery Aug 13, 2015
W. Blake C: Had one for over 15 years and it still worked fine. Purchased newer bike and wanted another. Quality product. Aug 13, 2015
"" ": I now have two bikes, haven't been good about alternating them, had one battery go down because of inactivity. Jun 26, 2015
proctor m: Reputation as the best battery tender. Jun 12, 2015
Shawn F: to maintain and charge battery (R6) May 18, 2015
T A: Keeps bike ready to go. Never a worry in the mornings. Jan 25, 2015
Jarred B: It makes sense to buy this, it charges the battery then goes into a trickle charge to keep good for long winter storage (no need of a messing around on having to find the charger and trickle charge) and as a bonus it has a common Q.D. connector strait to the battery for easy access. Jan 16, 2015
Werner S: Needed Nov 27, 2014
Judah H: We get some cold winters, so I need this to keep my batteries alive over these cold seasons. Nov 23, 2014
Barry B: On recommendation of my son. Nov 14, 2014
Steve H: I don't commute with my motorcycles and ride mainly on weekends. I've read a number of positive online reviews and thought this would be the ideal charger for my 2 street bikes. Nov 1, 2014
rich v: I have one since 2003 and my battery lasted over 10 years. I only changed the battery because I felt I was on borrowed time. Needed another for my second bike I just picked up. Oct 23, 2014
Arturo R: it will stop charging when battery topped off and won't fry my battery Jul 9, 2014
Paul O: My last battery tender was well over ten years old when a near by lighting strike toasted the charger, and a few other things. For the money, you can't find a better charger. Here's to ten more years with a new one. Jun 27, 2014
Brent B: I've owned Battery Tender product before, they are awesome! May 18, 2014
felipe b: Although we do not have the freezing winters as the states back east, it does cold enough here in S. Cal at times for the batteries in my bikes not to start my bikes. I bought this battery tender and all of my headaches with are gone! May 2, 2014
Walter G: After going thru two batteries, this was the smartest option for me. Apr 23, 2014
Rich B: simple and effective Mar 16, 2014
Paul H: Reviews helped, product seemed to work for others. Feb 17, 2014
Zachary W: Word of mouth. Feb 8, 2014
Kevin R: Turns out Aprilia's tend to lose charge over time when sitting. Feb 5, 2014
D R: Hopefully this will maintain my battery as stated and the reviews said this would be the case.... Feb 5, 2014
Kyle P: My landlord stole my other one. :) Jan 27, 2014
Doug C: I have had one of these for several years and the amount of battery replacement costs it has saved be has more than covered even the full price of the units. I was skeptical when first purchased and I leave a seldom started cycle battery connected to it full time when we aren't riding. I have not replaced a battery in years now and previously 1 - 1 1/2 yr battery life. Buying another for an electric generator starter battery i ruined by letting it sit too long. Dec 21, 2013
Saul Z: Recommended to be used to maintain a charge on my portable generator battery. Dec 11, 2013
Nicholas P: Need Nov 21, 2013
Colin S: I anticipate there will be a few long periods during the winter where I won't be able to ride my bike. I want to make sure my Tiger is charged up and ready to go when I'm ready. This will keep the battery healthy and hopefully eliminate any surprises. Oct 19, 2013
Walt T: can't say enough about the peace of mind that this product gives you on those cold winter nights where you know the charger's hooked up and keeping the battery fresh for your next ride...I ride year round and these chargers flat work great...cheap investment to get the full life of your battery...buy one, you won't go wrong! Sep 21, 2013
mark t asked: can i use this on my 2013 daytona 675 battery? Oct 15, 2013
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joseph k mccammon v: Mark t Yes it will work.
I use this tender on all my 12volt battery's AGM and lead acid (motorcycles, Grove crane, trucks,cars) just plug it in and let it go to work. Connect it directly to the battery and it will not interfere with a CAN-bus electric system. The battery's never get hot unless they have bad cells. Motorcycle battery's take about 12 hours to charge and truck/crane battery's 24 hours on average. I do not use it for Lithium iron phosphate battery's.
Oct 16, 2013
Arturo R: Shouldn't be a problem since most if not all systems run 12v batteries. Best bet is to use the pig tail connection as it makes life easy. The pig tail on my bike (2012 Ducati 848) was already set up by my dealership so I didn't even need to use the one provided in the kit. Hope this helps. Oct 16, 2013
Reply to Arturo Good answer? Yes (0) No (0)
iyu c: i believe yes, the only one model you needto watch out is the one model they make it for BMWs. otherwise it is working for every bike. i have two the same. one for my seven bikes, hondas, yamaha and suzukis. one evrn for my mercedes deep cycle battery. Oct 15, 2013
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mouayed M: what power source does this take, 220v or 110? can this work overseas with 220v power source? Oct 17, 2013
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Arturo R: ....just make sure your battery is a 12v. They sell both a 6v and 12v charger. Oct 16, 2013
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Enrico M asked: So I can just plug it, leave it and it wilk keep the battery charged at all tine without damaging it? Jul 2, 2015
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Michael H: Yes. I have used this product for several years on various bikes and cars. It is not designed to jump-start cars or recharge dead batteries, but it will maintain charge very well. I had this on my 2013 Ducati Panagale over this past winter and it has worked well. I also have used it on cars in storage. You could take the battery out, but that screws up on board computer settings for some vehicles. This comes with alligator clips, but your bike may have a place to connect the other loop quick-connectors which are included for motorcycles. Jul 3, 2015
Reply to Michael Good answer? Yes (1) No (0)
Elisha F: Pretty much. It monitors the battery voltage and stops charging when it is high enough, adjusting for ambient temperature as well. Occasionally I've plugged it in after a run on warm days and it signals that the voltage is too high, and it doesn't charge until the charge deteriorates and needs topping off. Jul 2, 2015
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Daniel K: Yes thats exactly what its meant to do. Jul 2, 2015
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jeff p asked: I have a 2012 BMW 650 Sertao. Do I purchase a 6 or 12 volt? Feb 9, 2015
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Nicholas P: depends on the battery you have, if stock, the 12 volt with trickle charge Feb 24, 2015
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Arturo R: I would go with the 12 volt Feb 9, 2015
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rich v asked: Will this charger work with BMW Gel batteries? Just realized one of my bikes was replaced with a BMW Gel Battery Nov 1, 2014
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Bill M: I use this device on the original battery in my 2011 R1200 GSA with no problems. Dec 29, 2014
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David K: Not sure Nov 18, 2014
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A shopper asked: guys will this also work for 220v coutries as opposed the 110v you have in US ? Oct 12, 2015
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Bill P: Input Voltage AC110-120 VAC, 50-60Hz
Working Voltage AC85-130 VAC, 50-60Hz

Oct 20, 2015
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