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Frequently Asked Questions
Q
: How can I tell what options are included on my A36D charger?
A
: Every charger will have a dedicated manual cover sheet included with the charger manual, which lists all the
options included. If the manual that shipped with the charger is no longer available, call La Marche and provide
the five-digit accessory code at the end of the model number.
Q
: Can two A36D chargers be connected in parallel?
A
: Yes, two or more A36D chargers can be connected in parallel as long as they are of the same output voltage
rating. Paralleling is to not be confused with load sharing. Refer to Section 3.6 for output voltage adjustments
with units in parallel.
Q
: Can the A36D charger settings be changed to accommodate charging Nickel Cadmium batteries
instead of the intended Lead Acid battery, or vice versa?
A
: The necessary adjustments can be made, but are dependent on model and number of cells that will be used.
The change that will be necessary for every model type is the output voltage adjustment; call La Marche to verify
that the charger in question will have the necessary output range. Alarm thresholds will also need to be changed
to the desired battery type defaults, refer to Section 3.4.1.2 for procedure and Section 3.1 for default values.
Q
: If equipped with alarm contacts, can the alarm contact reference on the charger schematic be
used for determining connections?
A
: Not completely. The charger schematic, for a charger with the option included, will show an alarm relay board
with contact indication. However, all the contacts are shown in resting state, which is not true when the charger
is energized. The charger schematic should also include an alarm contact table that specifies which relays are
energized during normal operation, and which are not. Refer to Section 2.4 for more information.
Q:
Why is there a Low Current alarm and can it be disabled?
A
: A Low Current alarm can be triggered by various conditions, but not all are considered to be severe. A common
condition encountered is the batteries reaching nominal voltage and being fully charged with no constant load
present. At this point, the charger is providing trickle charge to the batteries with minimal current draw and
indicating a known low current condition. If this is the case, refer to Section 3.4.1.2 for disabling instructions.
More severe conditions include charger failure, loss of AC power, maladjustment of output voltage, and possible
disconnection of DC loads. If this is the case, other alarms will also be present.
