ZTS MBT-LA2 - Manual (Page 10)

above the selected MODE. The MODE LED will blink
if the TEST button is pressed and no test cycle will
be initiated. For example, if 4v MODE is selected
and the leads are connected to a 12v battery, the
4V MODE LED will blink and the test button will not
function.
5) The leads should be left connected/plugged into the
tester when not in use. This minimizes contamina-
tion and helps insure good electrical connection.
Operating Problems / Troubleshooting
1) No operation and no LED activity.
a. Verify proper orientation of internal AA batteries
b. Clean the AA battery terminals.
2) Only the two red LEDs (10% & 20%) blink when
TEST button is pressed.
a. This indicates that the tester’s 4 AA batteries are
low. Replace with 4 new alkaline AA.
3) MODE button has no effect on battery selection or
TEST won’t begin.
a. Verify that the test leads are not connected to a
battery until after the unit is turned on.
b. Turn power switch off for 5 seconds, then restart.
c. Verify test lead polarity is correct.
About SLA Batteries
Capacity
This is the total amount of stored energy that is avail-
able from a fully charged cell or cells. A battery’s ac-
tual capacity is dependent upon the rate of discharge,
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