•
Confirm battery connections are good.
•
The nominal voltage for a lead acid battery is 2 V per cell. For example,
a 48V battery will have 48/2 = 24 cells.
•
If the battery voltage is greater than 2.5V per cell, the charger will not
start charging.
•
If the battery voltage is less than 0.5V per cell, the charger will not start.
•
For software revisions 0.81 or lower, the charger will not start charging if
the battery voltage is less than 1V per cell. Refer to the lower right hand
corner of the back of the Product Manual to determine the software
revision.
•
Check for any fault codes that might be set and refer to the descriptions
above.
•
A fully charged battery will draw very little current, but will not show
100% charged immediately. The charger will change to Absorption
mode in under 5 minutes once the conditions for the end of bulk charge
have been met. The 80% LED will illuminate at this time. During the
final phase of charging, the battery will only accept a very small current –
the charger is unable to accelerate this portion of the charge cycle
without damaging the battery.
Excessive
Battery Watering
or Strong
Sulphur (Rotten
Egg) Smell
Overcharging or high battery temperature. These symptoms are unlikely to be caused
by too high a charge current since the maximum charge current of the charger will be
small compared to even a moderately sized battery pack. The most likely cause for
this problem is incorrect charge algorithm setting and/or high ambient temperatures.
•
Confirm that the battery pack is not too small – usually > 50Ah.
•
Confirm that the nominal battery voltage matches the charger output
voltage.
•
Confirm the correct battery charge algorithm. If the battery pack is new,
the algorithm will need to be changed if the pack is not the same as the
old one. Refer to the Product Manual for instructions on how to
determine and change the battery charge algorithm.
•
If the output voltage of the charger seems excessive, return the charger
for service. Contact Delta-Q to get the expected battery voltage settings
for the charger in question. Be sure to have the charger’s serial number
and charge algorithm setting available when calling.
Difficulty
Changing the
Default Battery
Charge
Algorithm
The mode to change the battery charge algorithm can only be selected during the first
10 seconds of operation. Refer to the Product Manual for instructions.
If the 10 second window is missed, cycle AC power by unplugging the charger,
waiting 30 seconds, and reconnecting AC power.
To extend Battery Charge Algorithm Change Mode by 30 seconds (120 seconds on
newer models), connect the charger output to a good battery for approximately 1
second and then disconnect the battery again.
General Troubleshooting
Should the condition of a charger be in doubt, the flow chart on the next page should be followed to check
the charger’s operating condition.
19Aprr07 [email protected]
https://harrissupplyind.com - To Order Parts Call 608-268-8080
