Battery Tender Question / Advice

[MapleLeafFarmer]

I am not an electrical expert but I make due.
We use a lot of these NOCO GENIUS2D Onboard Smart Battery Charger, Maintainer, and Desulfator.
They work fantastic.

Question is if I have it hooked to a tractor battery and energized (plugged into a 120v outlet)... what happens when I start the tractor or p/u and have it plugged into the wall at the same time?
(would it affect tractor charging system, affect the charger itself, impact the battery, impact ecu, other....)

no problems on this end just has me wondering what would/could happen.

 

[jimh406]

I think it would be ok. For one, most are only about 2 amps. Worse case, it would be similar to jump starting for the tractor. Chargers generally have circuitry to shut them off when full charge is reached.

On the other hand, why wouldn't you just unplug?

 

[imnukensc]

On the other hand, why wouldn't you just unplug?

Or plug it into a timer.

 

[NCL4701]

I’ve done it accidentally at least once. No harm but YMMV.

 

[Botamon]

I have around 13 battery maintainers on various vehicles/batteries. Mine are Battery Minder brand but I often start the vehicle and then unplug the maintainer afterwards. Been doing that for years and never any bad effects to either vehicle or maintainer.

 

[lmichael]

Have never had an issue when I've done it

 

[MapleLeafFarmer]

I think it would be ok. For one, most are only about 2 amps. Worse case, it would be similar to jump starting for the tractor. Chargers generally have circuitry to shut them off when full charge is reached.

On the other hand, why wouldn't you just unplug?

its just a matter of convenience and comfort thing for me.

I could unplug it then start my truck. Means I wait in the -20/-30 or more cold for a minute or two while ecu warms up engine and drops rpm indicating ready to drive.

Or while in the house hit auto start letting it warm up, then go outside / make the unhooks and immediately hit the road.

Means I get to walk into a warm / ready to drive truck w/o having to wait for rpm to drop before I start out.

When its -20 or -30 for weeks at a time this saves time but also way more comfortable to leave a warm house into a ready to drive vehicle. Call me old and lazy and looking for a little more comfort. Always wondered if this is good habit or bad as I just don't know. <<inquiring minds want to know>>