Agm Battery Charging Precautions; Battery Equalization And Agm Batteries; Cleaning And Inspection - PREVOST H3-41 Maintenance Manual

4. Connect one end of the black jumper cable
to the negative (-) post on the booster power
source;
5. Connect the other end of the same black
jumper cable to the negative (-) terminal on
the booster block. If the good battery is in
another vehicle, start that vehicle's engine
and increase the engine rpm speed slightly
and maintain at that level for approximately
5 minutes to recharge run-down batteries
and then stop the engine;
6. Start the vehicle with the run-down battery;
7. Disconnect the jumper cables in reverse
order given in steps 2 through 5;
8. Install protective cap on the booster block
terminal.
NOTE
Jumper cables must be rated at 500 cranking
amperes. If jumper cable length is 20 feet (6
m) or less, use 2/0 (AWG) gauge wires. If
cable length is between 20 to 30 feet (6 to 9
m), use 3/0 (AWG) gauge wires.
DANGER
Any procedure other than the above could
result in personal injury, property damage due
to battery explosion, or damage to the
charging system of the booster vehicle or of
the boosted vehicle.
9.10 AGM BATTERY
PRECAUTIONS
AGM (Absorbed Glass Mat) batteries require a
voltage-limited, temperature corrected charger.
Make sure your charger is multi-staged and
minimally provides the following voltage values:
Charge stage voltage:
13.8-14.6 V @77°F (25°C)
Float stage voltage:
13.4-13.6 V @77°F (25°C)
Charging AGM battery on a typical constant
current or taper current charger – even one time
– may greatly shorten its life.
9.11 BATTERY EQUALIZATION AND AGM
Equalization
Conventional batteries may benefit from this
procedure, stirring the chemistry of the entire
battery it counters stratification (layers of
different concentration of electrolyte), and also
counters sulfation that may have accumulated
on the battery plates.
AGM
unbalance of the electrolyte. Manufacturers of
this type of battery generally do not recommend
performing equalization.

9.12 CLEANING AND INSPECTION

The external condition of the battery and the
battery cables should be checked periodically.
The top of the battery should be kept clean and
the battery tie-down clamp bolts should be kept
properly tightened. For best results when
cleaning the battery, wash first with a diluted
solution of ammonia or soda to neutralize any
acid present then wash out with clean water.
The battery tie-down bolts should be kept tight
enough to prevent the batteries from moving, but
they should not be tightened to the point that
excessive strain is placed on the battery
hold-down cover. Tighten as prescribed. Refer
to torque tables at the beginning of this section.
CHARGING
Battery terminals
Clean and coat terminals with Nyogel at the
intervals specified by the Lubrication And
Servicing
LUBRICATION & SERVICING.
A protective coating should be applied on certain
power connections that have been disconnected.
Refer to Procedure SAV00002E included at the
end of this section to know the recommended
products and where they are used.
To insure good contact, the battery cable ring
terminals should be tight on the battery posts. If
the posts or cable ring terminals are corroded,
the cables should be disconnected and the
posts and clamps cleaned separately with a
soda solution and a wire brush. Install cable ring
terminals on battery posts and tighten. Tighten
PA1621 Maintenance Manual All Series | Revised Sept 2019
SECTION 06: ELECTRICAL
BATTERIES
is a controlled
battery design prevents
MAINTENANCE
Schedule in
over charge.
chemical
Section 24:
69