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Condition
F) High output voltage measured
across charger output terminals.
VII) Specifications
INPUT RANGE (ALL MODELS): 90-264 VAC; 47-63 HZ
(automatic)
OUTPUT BANKS (ALL MODELS): 3
Model
Input Amps
115/230 VAC
PT-40U
6.8/3.4
PT-24-20U
6.8/3.4
12 Volt Model
Charge
Setting
@ 50%
Load
Gell-Cell
14.0 VDC
Lead Acid
14.2 VDC
Temperature Compensation: -5mV per cell per °C
Temperature Ratings: -20° C to + 60° C; Derate linearly
from 100% @ 50° C to 60% @ 60° C
Case Size/Weight: 13.85" H* x 9.5" W x 4.8" D* / 11 Lbs.
35.2* x 24.1 x 12.2 (cm) / 5 Kgs.
* With drip shield installed, add .75" (1.9 cm) to the height
and 1.35" (3.4 cm) to the depth.
Protection Features: Input fuse; Output fuse for reverse
polarity protection; Current limiting; Automatic high
temperature power reduction; Time adn load controlled
high rate charge circuit; Ignition protected; IP-21
VIII) BATTERY CARE TIPS
Regular maintenance and proper care will assure you
reliable service from the most depended upon and
sometimes most neglected items, your batteries and battery
charger. NEWMAR battery chargers are designed to keep
your batteries fully charged but your batteries also need
proper regular maintenance to provide a maximum life
of service.
ALWAYS READ AND FOLLOW THE BATTERY
Batteries not connected to charger. It
is normal to read ½ volt higher across
any output bank when no batteries
are connected.
Output
Volts
Amps. Cont.
12
40
20
20
24 Volt Model
Float
Charge
@ 1 amp
@ 50%
@ 1 amp
Load
Load
13.6 VDC
28.0 VDC
27.2 VDC
13.4 VDC
28.4 VDC
26.8 VDC
Possible Cause
MANUFACTURER'S INSTRUCTIONS
Battery Installation
Batteries must be securely mounted to prevent them
from falling over when the vehicle or boat is in motion.
A loose battery can do serious damage. Batteries should
be mounted in a battery box to contain any acid spill.
Batteries give off a certain amount of hydrogen gas when
they are charging. When concentrated, this gas is highly
explosive. Therefore make sure they are in an accessible
place with adequate ventilation for any hydrogen gas
discharge.
Cleaning Batteries
Dirt and electrolyte salts can build up on the top of your
batteries. This accumulation conducts electricity stored in
Float
the battery and can cause the battery to discharge by
itself. Therefore, at least twice a year, it is a good idea to
Load
disconnect the battery cables and scrub the battery with
a baking soda solution. Rinse with fresh water and dry
with a clean cloth.
You may wish to purchase a set of terminal post corrosion
prevention rings. These are alkali-saturated felt rings that
slip over the battery post to reduce corrosion. Do not apply
grease to any part of the battery terminals, but you may
use an occasional light spray of silicone lubricant.
Routine Checks and Maintenance
Batteries should periodically be "exercised" (slowly
discharged and then recharged) to keep them in top
condition. New batteries may need to be exercised before
they will be capable of their full rating.
If your batteries are not the sealed type, distilled water
should be added to them whenever needed. The electrolyte
should cover the plates by about 1/2", allowing a small air
space at the top. Do not fill the cells up to the filler cap as
this could cause the battery to sputter out electrolyte when
it is being charged. Only distilled water should be used
never plain tap water. Tap water contains chemicals and
elements that can alter the properties of the electrolyte,
including specific gravity. Some chemicals may also
create an insulating coating on the battery plates which
will retard current flow.
The rate that water is lost by the battery is dependent on
several factors; battery condition, ambient temperature,
Solution
Check for tight connection of charging
leads from charger to batteries.
12
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