Mäktig 710165 Owner's Manual page 3

Three-stage battery charging：
STAGE 1 – Bulk Charge: Delivers maximum charging amperage to "wake
up" any serviceable 12V battery and allows for quick engine starting. When
battery reaches a maximum safe predetermined voltage, the charger will
automatically move into Stage 2 of the charging process.
STAGE 2 – Absorption Charge: Maintains the maximum possible charge at
a constant, safe, predetermined voltage. During this phase, the charging
voltage remains constant, while the actual charging current is reduced to
allow for the maximum proper internal chemical energy transfer. At the end
of Stage 2, the charger will automatically move to Stage 3.
STAGE 3 – Float Charge: Voltage is automatically maintained and reduced
to a predetermined level while current is adjusted for a safe, effective battery
charge.
The Automatic Float Charge feature is ideal for maintaining a battery. It
automatically tops off battery as needed, to keep battery fully charged all the
time.
2. IMPORTANT SAFETY INSTRUCTIONS
WARNING – RISK OF EXPLOSIVE GASES
WORKING IN THE VICINITY OF A LEAD-ACID BATTERY IS
DANGEROUS. BATTERIES GENERATE EXPLOSIVE GASES DURING
NORMAL BATTERY OPERATION. FOR THIS REASON IT IS OF THE
UTMOST IMPORTANCE THAT BEFORE EVERY USE, YOU READ AND
FOLLOW THE INSTRUCTIONS PROVIDED.
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