'06 Rebel 250 Battery - Honda Rebel Forum
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post #1 of 18 Old 04-08-2019, 01:07 AM Thread Starter
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'06 Rebel 250 Battery

My wife recently bought a Rebel 250 and we learned that it has a magneto and does not charge/maintain the battery. She has maintained it on a tender and things have been fine but we're traveling soon and wondering if it isn't on the trickler, how long will the battery maintain voltage before needing a charge? Is there a nicely priced solar trickler that anyone would recommend?
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post #2 of 18 Old 04-08-2019, 07:26 AM
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maybe you have a current draw somewhere when the bike is parked - have you tested the output of the charger? it won't charge the battery at idle speed, you need to be riding

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post #3 of 18 Old 04-08-2019, 09:40 AM
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Welcome.

If the bike is ridden for more than just a mile or two every week or so, that should be enough to keep the battery charged. If it is ridden regularly, the battery may be on it's way out, or there could be a parasitic drain. Most auto parts stores will load test a battery for free. If it turns out a new battery is needed, get a Yuasa brand. They cost a few dollars more than some other batteries, but last a lot longer; 5-8 years or so.

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post #4 of 18 Old 04-08-2019, 02:24 PM
 
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magneto - has a permanant magnet in the rotor - you can push-start without a battery

alternator - has an electromagnet in the rotor - you need some fraction of charge left in the battery to push start.



both are generators.


the rebel's magneto generator puts out enough power to keep everything going at idle which is why it can be push started and run without a battery, but 'charging' the battery happens at any rpm above idle.


My AGM battery is 2+ years old, and I've accidentally gone a long as 4 weeks this past winter without the tender and it started up right smart, but I try to remember to connect it between 1 and 2 weeks of not riding.


Battery Tender Jr 0.75 amp is a great 'smart charger' and plenty for the rebel's battery and uses hardly any juice on the 'maintenance' phase of a fully charged battery. If you are only gone for 1-2 weeks, don't worry about the battery. If you will be gone for 2+ months, just remove the batttery and put it on a battery tender when you get back.

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post #5 of 18 Old 04-09-2019, 04:55 PM
 
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I purchased a car jump-starter battery-pack as insurance.


Get the smallest one you can find, stuff it in your jacket.

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post #6 of 18 Old 04-09-2019, 09:57 PM
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The Rebel engine can be started pretty easily just by push starting it. Put the bike in third, push till you reach maximum speed, hop on and pop the clutch. Remember to use the enrichment system (choke) if the engine is cold.

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post #7 of 18 Old 04-09-2019, 10:22 PM
 
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Quote:
Originally Posted by flitecontrol View Post
The Rebel engine can be started pretty easily just by push starting it. Put the bike in third, push till you reach maximum speed, hop on and pop the clutch. Remember to use the enrichment system (choke) if the engine is cold.
Unfortunately not for me. I don't have the weight and strength to push start this beast

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post #8 of 18 Old 04-10-2019, 02:10 PM
 
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Beast? Are you sure you are talking about a Rebel? The Rebel stator should have no problem keeping the battery charged if you ride it very much. If it sits and is not connected to a battery tender, it will slowly go dead. Get a multimeter (you can get one at Harbor Freight or even Home Depot for $10-$15. Check the voltage of a fully charged battery with the engine off. It should be in the 12V range. Check it again with the engine at idle. It should drop down into the 11V range. The lights and ignition are consuming more current than the stator is putting out. Check it again with the engine revved up to around 3000 rpm. Now you should get a reading in the 14V range, meaning the stator is not only running the lights and ignition but charging the battery as well. If it is not charging, then the stator or R/R (regulator/rectifier) is not working. If the charging system is not charging at all, it will drain a fully charged battery VERY quickly, mostly because of the lights. On older bikes you could ride halfway across the country with no charging system, if you didn't use the lights and kickstarted the engine. Modern bikes don't allow that. I would definitely check out the charging system before taking off on a trip. Not much worse than being stranded beside the road with a broke down bike.
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post #9 of 18 Old 04-10-2019, 06:56 PM
 
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I can push the bike on a level, tarmac surface, at less than walking speed. Add any incline and I'm leaning hard into it and inching the bike along. I was used to much lighter bikes (150-200lb), so I'm hitting the gym now, lol.



My daily ride is only 2.5mi each way, I average 20-25mph due to bends and ever changing pot-holes, gritty patches, leaves, lichen, dead things, branches, etc., except one spot I can get to 35mph before decelerating.


So short of driving in a low gear most of the way, I can't imagine it gets a decent charge. The bike does charge fine, I just don't provide it with the best of conditions. Once I hook up a tachometer and ammeter I'll have better information.

1974 CB125S (purchased 1983, ate 2 crankshafts, sold 1984)
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post #10 of 18 Old 04-10-2019, 10:23 PM
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Sounds like it would benefit you to keep it on a battery maintainer when you park it at home.

Keepin' all the left over parts. Gonna use 'em to build another bike!

'01 & '09 Rebel 250, '06 Ninja 250, '89 VN 750
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