Operating Instructions
11156553
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4.3.5
Setting the low-voltage protection function
This product has the function of low voltage protection. If it detects that the battery voltage
is lower than the set value, it will automatically turn off the compressor to prevent over-
discharging from damaging the battery or not allowing the car to start normally. At this
time, the display screen will display "E1" code prompt. If the voltage returns to normal, the
cool box will automatically enter the operating state one minute later. The factory default is
"medium". If you need to change it, please follow the following steps:
a: Unlock keyboard
b: Keep the “SET” key depressed for 6 seconds, release it after hearing the beep of the
buzzer, and then press the “SET” key briefly. At this point, one of the battery protection
level icons, “L, M or H”, will flash on the display. Then press the
“up/down" key to change the setting. Specific value
Battery
protection
Display
symbol
12Vcut-off
12Vcut-in
24Vcut-off
24Vcut-in
Low
N
9.6 V
10.9 V
21.3 V
22.7 V
centre
M
10.4 V
11.7 V
22.8 V
24.2 V
High
H
11.1 V
12.4 V
24.3 V
25.7 V
If your cool box enters the battery protection mode prematurely, it is likely
that your power supply voltage is insufficient and the low-voltage protection
value is set too high. Or the wiring of your DC power supply is not suitable and cannot
provide enough power. Check whether the power supply wiring is suitable, and consider
appropriately lowering the battery protection grade. In order to ensure that the car can
start normally, it is recommended to set the protection level at “H” when using the cool box
in the car.
4.4
Cleaning and maintenance
Before cleaning, it is necessary to disconnect the power supply and wipe the inner and outer
surfaces of the cool box with a cleaning cloth dipped in an appropriate amount of water or
detergent. It is not allowed to wash directly with water to avoid damaging the electrical
components.
If the cool box is not used for a long time, the inside and outside must be cleaned and kept
dry, and measures must be taken to protect it against moisture and dust, and to prevent
mould formation and unusual odours inside the cool box.
