DISCHARGING
PROCEDURE
1. DISCHARGING (WHEN USING THE LI-ION BATTERY DISCHARGER)
CAUTION:
Be sure to wear insulated gloves and protective goggles.
NOTICE:
Make sure to observe the following points when using the Li-ion battery discharger.(a) Select Li-ion battery connection cables
(1) Confirm the type of the Li-ion battery connection cable as indicated by the tag shown in the illustration. (Type: TM4216-71) | |
(b) Install Li-ion battery connection cable
(1) Set the Li-ion battery discharger as shown in the illustration. | |
(2) Connect the Li-ion battery connection cable connector (A) to the Li-ion battery discharger connector (A). NOTICE: Make sure that the connector is connected securely. |
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(3) Connect the Li-ion battery connection cable connector (B) to the Li-ion battery discharger connector (B). NOTICE: Make sure that the connector is connected securely. |
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(4) Set the Li-ion battery discharger as shown in the illustration. HINT: The Li-ion battery discharger is set on its side so that the ventilation holes will not be blocked. | |
(c) Connect Li-ion battery connection cable
(1) Connect the connector (orange) of the HV supply stack sub-assembly to be discharged to the Li-ion battery connection cable (orange). |
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(2) Confirm that all of the LED indicators are illuminated as shown in the following table. CAUTION: If all of the LED indicators of the Li-ion battery discharger listed in the following table are not illuminated, the HV supply stack sub-assembly cannot be discharged using the Li-ion battery discharger. Make sure to soak the HV supply stack sub-assembly in a salt water solution to complete discharging. LED Indicator Illumination Status (When discharge has started normally)
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(3) Confirm that the cooling fans operate.
*a | Cooling Fans | - | - |
HINT:
(d) Confirm discharge completion
(1) Confirm that all of the LED indicators of the Li-ion battery discharger have turned off.
(2) Continue to discharge the HV battery for 1 hour after all of the LED indicators of the Li-ion battery discharger have turned off.
(e) Disconnect Li-ion battery connection cable
(1) Disconnect the connector (orange) of the HV supply stack sub-assembly from the Li-ion battery connection cable (orange). | |
(f) Remove Li-ion battery connection cable
(1) Set the Li-ion battery discharger as shown in the illustration. | |
(2) Disconnect the Li-ion battery connection cable connector (B) from the Li-ion battery discharger connector (B). |
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(3) Disconnect the Li-ion battery connection cable connector (A) from the Li-ion battery discharger connector (A). |
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2. DISCHARGING (WHEN USING THE SALT WATER SOLUTION)
CAUTION:
Be sure to wear insulated gloves and protective goggles.
NOTICE:
(a) Prepare HV supply stack sub-assembly
(1) Set the HV supply stack sub-assembly in the container (A). |
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(b) Prepare to discharge (Add water to container)
(1) Measure the water capacity of the container (B). HINT: Water capacity of the container (B) is assumed as X (liter). |
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(2) Using the container (B), add water to the container (A) until the HV supply stack sub-assembly is completely submerged. NOTICE: Make sure to record the times the container (B) was filled with water to add water to the container (A). |
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(3) Using the following formula, calculate the amount of water added to the container (A).
Amount of water added to the container (A):
Y (liter) = Water capacity of the container (B) x Number of times the container (B) was filled with water to submerge the HV supply stack sub-assembly
HINT:
Amount of water added to the container (A) is assumed as Y (liter).
(c) Prepare salt water solution
(1) While measuring the amount of water, fill about half of the container (B) with water. HINT: Amount of water added to the container (B) is assumed as Z (liter). |
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(2) Calculate the amount of salt to be added to the container (A) so that a 1% salt water solution will be made.
Amount of Salt:
Amount of salt (kg) = (Y (liter) + Z (liter)) x 0.01
(3) Add the calculated amount of salt to the container (B) and stir it thoroughly. |
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(d) Add salt water solution
(1) Add the concentrated salt water solution to the container (A). | |
(e) Discharge
(1) Leave the HV supply stack sub-assembly as is for 24 hours or more until discharge is complete.
CAUTION:
(f) Confirm discharge completion
(1) Check that bubbles are not forming in the container.
NOTICE:
If bubbles are forming, discharge may not be completed yet. Do not place a lid on the container.
(g) Display a warning sign such as "DO NOT TOUCH! (DISCHARGE BEING PERFORMED) to inform others. Make a copy of the warning sign and place it near the HV supply stack sub-assembly being discharged.