There are some important facts to keep in mind when charging a 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 bat- tery voltage and the Battery Council International scale. 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 charging process is allowed to complete.
•The battery % shown in tester mode can be used to estimate the relative 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 percent of charge than the first several percent.
18.charging tips
Read this entire manual before using your charger. The tips below serve only as a guide for specific situations.
18.1If your vehicle won’t start: You don’t need to fully charge the battery to start your vehicle. If the charger won’t start your vehicle using the EN- GINE Start rate, try charging the battery using the MEDIUM TO LARGE
BATTERY setting for 10 or 15 minutes. That should charge the battery enough to allow the ENGINE START rate to start the vehicle. If the vehicle will then be operated 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.
18.2Reviving your battery: If you only wish to charge your battery enough to operate your vehicle, you don’t need to wait for the entire charging process to be completed. When the charger displays a battery % of 77 or more, the battery has usually been charged enough for the vehicle to start and operate normally.
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