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EFFECTIVITY:
CIRRUS AIRPLANE MAINTENANCE MANUAL MODELS SR22 AND SR22T
01 Jan 2012
AD. Battery 2 (See Figure 24-3010)
(1) Removal - Battery 2
CAUTION: All electrical circuits must be off, prior to disconnecting battery cables. If battery 2
becomes damaged and electrolyte is spilled, neutralize the spill immediately with
a solution of baking soda and water, then rinse with clean water.
(a) Verify ignition switch is in OFF position and remove the key.
(b) Set BAT 1, BAT 2, and AVIONICS switches to OFF positions.
(c) Serials 22-0002 thru 22-0820: Remove access panel CB6. (Refer to 06-00)
(d) Serials 22-0821 & subs, 22T-0001 & subs: Remove access panel RE3. (Refer to 06-00)
(e) Disconnect vent hose from battery enclosure.
(f) Serials w/o Perspective Avionics: Disconnect electrical connector from battery enclosure.
(g) Serials w/ Perspective Avionics: Remove cable ties securing wire harness service loop to
empennage.
(h) Serials 22-0002 thru 22-0820: Remove screws and washers securing battery enclosure to
mounting tray standoffs.
(i) Serials 22-0821 & subs, 22T-0001 & subs: Remove screws, washers, and spacers secur-
ing battery enclosure to mounting tray.
(j) Serials w/o Perspective Avionics: Remove battery enclosure from airplane.
(k) Serials w/ Perspective Avionics: Position battery enclosure near access panel opening.
(l) Remove screws, washers, and nuts securing upper battery enclosure to lower battery
enclosure.
(m) Disconnect negative battery cables from battery terminals.
(n) Disconnect positive battery cables from battery terminals.
(o) Remove batteries from lower enclosure.
CAUTION: Do not use abrasive cleaners or materials to clean battery terminals.
(p) Visually inspect battery terminals for dirt or corrosion. Clean or replace terminals as nec-
essary.
(2) Installation - Battery 2
(a) Position batteries to lower battery enclosure.
(b) Connect positive battery cables to battery terminals.
(c) Connect negative battery cables to battery terminals.
(d) Position upper battery enclosure to lower battery enclosure and secure with screws, wash-
ers, and nuts.
(e) Serials 22-0002 thru 22-0820: Position battery enclosure to mounting tray standoffs and
secure with screws and washers.
(f) Serials 22-0821 & subs, 22T-0001 & subs: Position battery enclosure to mounting tray and
secure with screws, washers, and spacers.
(g) Serials w/o Perspective Avionics: Connect electrical connector to battery enclosure.
(h) Serials w/ Perspective Avionics: Position wire harness service loop to fuselage and secure
with cable ties.
(i) Connect vent hose to battery enclosure.
(j) Serials 22-0002 thru 22-0820: Install access panel CB6. (Refer to 06-00)
(k) Serials 22-0821 & subs, 22T-0001 & subs: Install access panel RE3. (Refer to 06-00)
(3) Inspection/Check - Battery 2 Top-Charging
The battery will discharge at approximately 3% per month when storage temperature is main-
tained at 68°F (20°C). Self-discharge rate will vary with storage temperature and the remaining