Strange Behavior?

up-high · Dec 9, 2015

I have a 2009 FE570 that I use exclusively as a snow bike. I thought I would use a battery tender(cheap Napa one) to keep the battery up. When I plug the charger in, the computer, fuel pump, and the headlight come on for a few seconds and then turn off. After a few seconds, this repeats itself as long as the battery tender is connected. I am at a loss!

Kt88 · Dec 9, 2015

Normal. I disconnected my battery to charge.

up-high · Dec 9, 2015

I guess that's what I'll have to do.:thumbup:H-berg

Rainerio · Dec 9, 2015

I have a battery tender that I use on 3 of 2011 Husaberg's without any problems?

up-high · Dec 9, 2015

What tender are you using? This one is a 2 amp. Maybe too much?

Rainerio · Dec 9, 2015

I have two deltran batterytenders one is 1.25A and the other is 800MA

jon andersson · Dec 10, 2015

I think they changed something in the system as I only heard about that "problem" on -09.

Palle · Dec 10, 2015

What battery are you using? Lithium or what other?

up-high · Dec 10, 2015

using sealed lead/acid battery.

FE350 · Dec 14, 2015

Just a thought on this, You are hooking the tender direct to the battery and not to a 12v feed acces wire correct? I do know the newer KTM bikes look for a higher voltage spike to switch the system on and then hold it on for a few seconds until it see's a voltage drop then turning the system off back off. I have not really looked for what voltage it requires to switch the system on but I would suspect it is what the regulator puts out running.

The charger might be spiking and kicking system on as charge is always above nominal battery voltage.

jon andersson · Dec 14, 2015

That sounds logical FE350. The software is probably updated after -09 as it is just an issue with the first models.

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Strange Behavior?

up-high

Kt88

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Rainerio

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Rainerio

jon andersson

Palle

up-high

FE350

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