Xantrex Technology JAZZ 250 - Manual (Page 26)

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7. Be careful not to drop a metal object on the battery
or allow a metal tool to simultaneously touch the positive
and negative cable ends or battery terminals. It might
spark or short-circuit the battery or other electrical parts
and cause an explosion.
8. Remove personal metal items such as rings, bracelets,
necklaces, and watches when working with a lead-
acid battery. A lead-acid battery produces a short circuit
current high enough to weld a ring or other similar
objects to metal, causing a severe burn.
If you do not know how to safely remove and install higher
amperage batteries, have this task performed by a qualified
service technician.
Follow these steps to replace the battery:
1. Place Portable Power 250 upright and on a stable and
level surface. Unscrew the 4 fasteners that hold the
Battery Cover on the black of Portable Power 250 and
remove the cover. Place the fasteners in the cover for
safe keeping.
2. With Portable Power 250 still upright, slide the battery
out. Using a screw driver and small adjustable wrench,
remove the nut and bolt that hold the internal positive
and negative cables to their respective battery terminals.
Note how the nut, bolt, and washers attach the internal
cable to the old battery terminal and make certain they are
positioned in the same order when connecting the cables
to the terminals of the new battery.
IMPORTANT: The location of the positive and negative
terminals vary from one battery manufacturer to another.
Check your replacement battery polarity carefully before
connecting the battery cables.
3. After removing the old battery, position the new battery
close to the back of Portable Power 250. Make certain the
positive battery terminal is next to the red (+) internal
cable and the negative terminal is next to the black (-)
internal cable.
4. Securely fasten the bolt, washer, and nut that holds the red
positive cable to the positive battery terminal and the
black negative cable to the negative battery terminal. Do
not over tighten the nut and bolt. Make sure cable
polarity is correct. Reverse polarity will damage the unit
and could cause serious injury.