TM 5-3810-307-24-1-1
Organizational Preventive Maintenance Checks and Services - Continued
(1)
(2)
(3)
(4)
(5)
Interval
Item
Item To Be
Equipment Is Not
M
Q
S
A
B
H
No.
Inspected
Procedure
Ready/Available If:
(18)
500
Batteries
WARNING
Do not smoke or allow
flame or spark in the
vicinity while checking
the batteries. The bat-
teries generate hyd-
rogen, a highly explo-
sive gas.
WARNING
Battery electrolyte is
toxic to skin, eyes, and
respiratory tract. Avoid
all contact. Skin and
eye protection and
vapor control are re-
quired.
a. Battery has bulging
a. Clean batteries, refer
sides, sides are hot
to Section 2, and
to the touch,
inspect for bulging
electrolyte is boiling
sides, sides hot to the
out vents, or any
touch, electrolyte
other obvious
boiling out of vents,
damage.
and other damage.
b. Remove battery caps b. Specific gravity
indicates charge
and check specific
below 50% or
gravity (refer to Table
electrolyte level is
below) and level of
below bottom of
electrolyte in each cell.
battery caps.
Charge batteries and
add distilled water as
necessary.
Battery State Specific Gravity
of Charge
@27C[80F]
100%
1.260-1.280
75%
1.230-1.250
50%
1.200-1.220
25%
1.170-1.190
Discharged
1.110-1.130
1-3-7
