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• 15 •
There are some important facts to keep in mind when charging a 16.4
battery:
When the display indicates 77% charged, the battery has been charged •
enough to start most vehicles and has already been charged as much as
by many other battery chargers.
When the display indicates 85% charged, the battery has already been •
charged at least as much as by most other battery chargers.
The battery % shown in tester mode is an estimate based on the battery •
voltage.
The battery % shown in charger mode is an estimate of the relative •
charge in the battery compared to the charge it should have if the charg-
ing process is allowed to complete and can be used to estimate the rela-
tive charge time. The lower the % shown, the longer the charge time for a
given battery.
The battery % shown in charger mode is an indication of the relative •
progress of the charging process. The higher the battery % displayed, the
less charge time remains.
The more a battery is discharged, the faster it absorbs charge from a •
charger. That means that the battery % increases faster at the beginning
of the charging process than at the end. In other words, it takes longer for
the battery to absorb the last few percents of charge than the rst several
percents.
CHARGING TIPS17.
Read this entire manual before using your charger. The tips below serve
only as a guide for specic situations.
If your vehicle won’t start17.1 : You don’t need to fully charge a battery to
start your vehicle. If the charger won’t start your vehicle using the 80A
START rate, try charging the battery using the 30A rate for 10 or 15 min-
utes. That should charge the battery enough to allow the 80A START rate
to start the vehicle. If operating the vehicle continuously for an extended
period (such as a long drive), the vehicle could charge the battery back to
normal during that period. If the vehicle will only be operated for a short
period (short drive), the battery might need to be charged again before it
could start the vehicle again.