BatteryViewInfo by Nir Sofer There are three parameters that you need to look at.

How do i know if my battery tender is bad. This will greatly lengthen the life of your battery as long periods of disuse are bad for lithium batteries. With the tender connected and in a charge mode check its lights to see what it is doing the batterys voltage should increase to above 13 Volts over a period of 5-10 minutes as this indicates it is being charged by the tender similar to what the alternator does in the bike running down the. Remember that if you do not have the battery disconnected from the bike the parasitic drain from the electrical system will pull from the battery when the Tender is in watch mode.

It just may be the charger putting back into the battery what was removed from the keep alive circuits of the bike. Once the AC power is removed from the Battery Tender Plus battery charger the green light will go out and the charger not have any effect on the battery. You can test the batterys standing voltage with a multi-meter.

In any case any movement in the ammeter needle from zero indicates the. You can do this by charging your battery to a full charge plug your jacket in turn it on and leave it in a safe place. If your battery goes dead long before you expect it to then theres a good chance it is a result of sulfation.

Disconnect from any load check the battery for a bad cell and restart charger. Whereas trickle chargers are known to over-charge and cause battery boil out the sensors in a tender will actively monitor the condition and charge level of your battery using a series of modes to best suit the situation. If the battery is fully charged then the Battery Tender Plus battery chargers green light will be on.

Support my Channel here. Once discharged fully charge your battery and then store it in a dry cool place. If all connections are sound your battery may have fallen bellow 125-V while in Maintenance-Float mode.

I do know you dont want to charge AGM batteries at more than 14 amps IIRCThat means Noahs charger should be okay but I like the lower amp output of the battery tender as. This can occur if the battery is connected to a load if the battery is sulfated or if there is a bad cell. Indications such as Charge mean the trickle charger is sending low safe amps to the battery.