Using the D400 Charger with a RangePro X8 Battery
© 2020 Terraview 360, Inc. 7 Part Number: TSN0001, Rev A
5. Troubleshooting Common Charging Errors
a. The channel times out before charging is complete
i. Error Message: OVER TIME LIMIT
ii. In the system settings,
(1) set the Safety Timer to OFF to prevent this from ever happening, OR
(2) set the Safety Timer to ON and 150 minutes
(a) Each Range Pro X8 RP6S24KHDA battery pack requires approximately 12,000 mAH
for a full charge. At 6 Amps this equates to two hours or 120 minutes.
(b) Another 30 minutes is added to support the extra time required to complete final
balancing at lower currents.
b. The channel stops charging due to an over charge capacity limit
i. Error Message: OVER CHARGE CAPACITY LIMIT
ii. In the system settings,
(1) set the Capacity Cut-Off to OFF to prevent this from ever happening, OR
(2) set the Capacity Cut-Off to ON and 12,600 mAH
(a) Each Range Pro X8 RP6S24KHDA battery pack requires approximately 12,000 mAH
for a full charge.
(b) Another 5%, or 600mAh, is added to permit support for some more extreme battery
drainage situations.
c. The channel charges batteries to 4.35V per cell
i. Error Message: None – determined when checking battery cell voltages after charging is
completed
ii. Within memory setup, anytime the BATT TYPE field is opened for editing, the TVC (Terminal
Voltage Charge) is reset to the default voltage for that battery type. The user is not
informed of this background change. If the program is then saved without ensuring the TVC
is set correctly, the memory setup will overwrite the previous setting and use the default.
(1) The custom memory program for the Range Pro X8 RP6S24KHDA battery pack uses the
LiHV setting, which has a default TVC value of 4.35 VDC.
(2) For the Range Pro X8 RP6S24KHDA battery pack the correct TVC value is 4.30 VDC.
(3) After changing the battery type and prior to charging, always confirm the TVC is set to
the correct value.
iii. Why does this resetting of the TVC sometimes happen unexpectedly?
(1) To start a charging sequence using Battery Memory 1, the user needs to PRESS & HOLD
the Enter “” key.
(2) To start editing setup for Battery Memory 1, the user needs to PRESS the Enter “”
key.
(3) If a user is not careful and, starting at the [BATT MEMORY 1] screen, presses the Enter
“” key twice in a row, the system enters edit mode for the Battery Type. Even if no
change is made in this field, the TVC is updated to match the default TVC for the battery
type selected. To prevent the default value from being saved either press BATT/PROG
“” to cancel without saving or prior to saving, adjust the TVC to the correct value.
d. The charger will only charge the battery at 0.1A and it takes a long time.
i. This can happen when a battery is significantly drained beyond normal operating voltages
and the cell voltages have fallen below a certain charging threshold.
