Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
Jump Start Motorcycle from AC outlet?
I'm looking for a plug-in Battery Charger that can start my motorcycle in case I leave the keys in the ignition (again).
I have saddle bags on my bike and carry a battery tender, but that charge is so slow, it'll take hours before it charges enough to start the bike.
I'm just wondering if such a charger exists, that I can plug in and instantly (or a reasonable amount of time) start the bike.
I've searched the internet but can't seem to find any such thing.
Thanks for any help.
9 Answers
- curmudgeon55Lv 79 years agoFavorite Answer
Go to local professional auto parts store and look for a battery charger with a 'Boost' setting. Shops have large units that will do a 200 amp boost for cars but Shaurer(sic?) has a couple small units that will fit into standard saddlebags- 10/30 variable continuous charge with a 50 or 70 amp boost setting that will start motorcycles- what a cycle shop uses for the overwinter stored without prep cycles. Check battery fluid level, charge 2/3 minutes at 10 amps to get connection checked, then hit cycle starter and boost switch- on one model that is a 2 handed job as boost setting switch is momentary contact- release finger and it goes back to trickle- but it can be done by single person if you set charger on seat or table next to cycle. Family uses one on farm that has slightly larger size that I transported in saddlebag to get vehicle stalled at far shed going. I think the make a compact 6/20/50(?) amp unit where trickle is 6 amp, regular is 20 amp and boost is 40 or 50 amp.
- Dimo JLv 79 years ago
Curmudgeon55 & I don't follow the rules -- we just use what works.
You can also jump the battery. Connect red cable to positive pole of to the bike battery, connect the black to the ground of the bike, such to bare engine fins, connect a car battery to red to positive and black to negative, start the bike and remove the black cable from the bike, red from the battery of the bike, remove the car battery. Take ride, 15-30 minutes.
I have flattened my bike's battery *five* times. Last two times I connected to a car charger on the 10 amp level, two hours and it gets enough juice to start my Savage. Last time was about a month ago and the battery survived again. It is a four year old AGM battery, good stuff.
I have a cigar lighter socket on my bike, connected directly to the battery. Fuses? Ha! I don't need no stinking fuses! I can plug the charger straight into the cigar ighter socket, works "Jes' Fine."
- Mad JackLv 79 years ago
First. You never ever jump start a motorcycle. Bad things can happen. I have seen many questions in this section on people looking to repair a fried ignition system from jump starting a motorcycle.
Next. These battery chargers are slow for a reason. You never ever charge a motorcycle battery at a rate of more than 2 amps. You can destroy the plates in the battery if you charge it too quickly.
A battery tender is not really intended to charge a dead battery. It is only intended to maintain a charge on a fully charged battery. This takes far less electricity. Look for a small 2 amp battery charger. Fully automatic if possible. But you must be patient. At 2 amps it can take up to 3 hours to charge a completely dead battery enough to start a motorcycle.
- Anonymous9 years ago
Quick charging is really hard on motorcycle batteries, and is to be avoided. The battery should be charged at a rate of less than 1/10 of its capacity--in other words, at 1.5A or less for a 15 Ah battery. If you carried a charger, you would probably need an AC extension cord, too. It's simpler to just remember to turn off the key and pocket it, isn't it?
- How do you think about the answers? You can sign in to vote the answer.
- Frank MLv 59 years ago
I use the "Start" function on my battery charger, they also make jump boxes at WalMart that recharge in the wall.
Yes its not the best for your battery, BUT if you are running it down anyway its not going to make a huge difference. It's like a cancer patient eating greasy cheesburgers and smoking Marlboro Reds.
The way I found to avoid these situations is buy a classic bike with kick start. I don't like many bikes after Reagan's first term.
- Anonymous5 years ago
Check the master fuse as Jim has said,by the solenoid.---redundant statement by one poster who said that it won't hurt it and the bike will draw only what it needs but then again it was stated that you may have fried your stator or rectifier-how did you do that if it only draws what it needs.A bad starter can pull way more than the amperage provided by the bike's battery which if connected to a running car will pull what it needs to start the motor which may be more than the 30 amp system can handle without melting wires and blowing fuses.Replace 2 things,the master fuse and a new battery as the cost of the battery is about 45 bucks and a new stator is about 250-300 bucks....there I said it now let's see the naysayers give me a thumbs down.
- DanLv 79 years ago
Yes, any 12 VDC charger will work like that
The output leads are polarized, so Red (pos) + goes to Pos + the other goes to the frame ground or the engine. Jumps instantly, no need to wait, the bike will charge from the alternator in minutes of riding.
>> You CAN run a ire from batt POS + amd strap it securely and insulated so you won't have to remove the batt cover, somewhere that you won't accidently touch the frame.<<
- Anonymous9 years ago
Stop using the killswitch to shut off the engine.