Electrical
6‐6
Istheamperagehigherthanthe
standardchargingamperagewritten
onthebattery?
Charging a maintenance free battery
Using a Variable Rate Charger (maintenance free batteries)
Set the charging voltage to 16-17 V.
No
Yes
Iftheamperagedoesnotexceedthe
standardchargingamperageafter5
minutes
,
replacethebattery.
Setthetimertothechargingtime
determinedbytheopencircuit
voltage.
Monitortheamperagefor3‐5
minutes.Isthestandardcharging
amperageexceeded?
Adjustthevoltagetoobtainthe
standardchargingamperage.
Adjustthechargingvoltageto20‐25V.
Connectachargerandammeterto
thebatteryandstartcharging.
Iftherequiredchargingtimeexceeds
5hours
,
recheckthechargi ng
amperageandadjustthevoltageto
obtainthestandardcharging
amperage.
Letthebatterysitfor30minutes
,
thenmeasuretheopencircuit
voltage.
12.8Vormorechargingiscomplete
12.0‐12.7Vrechargingisrequired.
Measuretheopencircuitvoltage.