Lithium Batteries
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3rd Gear
Joined: Jan 2025
Posts: 7
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From: Norcal
LiFePO4 battery are protected internally with all kinds of electronic wizardry.
I've never used the tender even after not riding for two weeks on my Ultra, started right up.
My battery has a voltage read out right on the battery so you can see what's going on with it.
Attaching a tender does what it's supposed to do, maintain voltage. not rocket surgery.
I've never used the tender even after not riding for two weeks on my Ultra, started right up.
My battery has a voltage read out right on the battery so you can see what's going on with it.
Attaching a tender does what it's supposed to do, maintain voltage. not rocket surgery.
Grand HDF Member
Joined: Apr 2007
Posts: 3,727
Likes: 3,072
From: Brighton, MI
Third winter with a LiFePO4 battery. No issues, ne regrets. I have the Noco genius 1 charger. In the winter (Michigan) when just sitting, I charge it once every couple of months. The battery manufacturer says charge about once every 3 months if battery sits without use. I have an older Dyna so no power draw when bike is shut down.
I just put the charger on and leave it all night. The charger stops charging when battery is fully charged and the light on charger changes color when fully charged. Unplug charger and let bike sit till next time or riding season. The slower you charge a LiFePO4 battery, the longer it will live. Less heat with lower charging rates, less heat to the cells means longer battery life. It is recommended that your charging system put out about 13.6 to 14.4 volts. If yours does that, your golden. Those voltage recommendations vary slightly based on who you ask or the manufacturer of the battery.
I just put the charger on and leave it all night. The charger stops charging when battery is fully charged and the light on charger changes color when fully charged. Unplug charger and let bike sit till next time or riding season. The slower you charge a LiFePO4 battery, the longer it will live. Less heat with lower charging rates, less heat to the cells means longer battery life. It is recommended that your charging system put out about 13.6 to 14.4 volts. If yours does that, your golden. Those voltage recommendations vary slightly based on who you ask or the manufacturer of the battery.
Seasoned HDF Member
Joined: Dec 2005
Posts: 19,925
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From: poway
If that's all you are concerned about.. In the case of Dynas and big motors, the higher voltage and CCAs make a difference. You are giving up AH tho.
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