Title: importance of car battery service
1Importance of car battery maintenance
2Electric-vehicle battery
- Electric-vehicle batteries differ from starting,
lighting, and ignition (SLI) batteries because
they are designed to give power over sustained
periods of time. Deep-cycle batteries are used
instead of SLI batteries for these applications.
Traction batteries must be designed with a
high ampere-hour capacity. Batteries for electric
vehicles are characterized by their relatively
high power-to-weight ratio, energy-to-weight
ratio and energy density smaller, lighter
batteries reduce the weight of the vehicle and
improve its performance.
3Battery types
- Lead-acid
- Nickel metal hydride
- Zebra
- Lithium-ion
- Solid state (experimental)
4Battery capacity
- Battery capacity are divided in to three major
different categories according to there uses and
they are - Full-electric
- Plugin hybrids
- Nonplug-in hybrids
5Steps in car battery maintenance
- Locate the battery in your car.
- Check the battery's water level every 2 to 3
months, only if it's a non-maintenance-free
wet-cell battery - Clean the battery terminals with a wire brush
every 6 to 8 months. - Coat the battery with grease made for high
temperatures - Inspect cell voltage every time you get an oil
change or have your car in for maintenance. - Check the battery insulator, if your car has one
- Take your car in to your mechanic or shop for
regular servicing and tune-ups
6Locate the battery in your car.
- Most car batteries have a heavy-duty plastic case
with two terminals to connect the positive and
negative (ground) wires to the car. The terminals
are usually made of lead or brass and can look
like two thimbles. The terminals can also be two
threaded screws or two threaded holes on the
front of the battery. Take a picture before
removing the cables to make sure the positive and
negative cables do not get reversed
7Check the battery's water level every 2 to 3
months, only if it's a non-maintenance-free
wet-cell battery
- Absorbed Glass Matt (AGM) battery. With an AGM
battery, never attempt to open the battery. It is
a good idea to only have a battery expert check
the water levels in a maintenance-free
battery-they rarely ever need water. For
non-maintenance-free wet-cell batteries you can
check the battery's water level every 2 or 3
months. The water should just touch the bottom of
the battery's refill hole. - Pull up the fill caps on the battery to inspect
the fluid level. Some batteries do not have fill
caps because they are made so they do not need
any water. - Refill the battery only with distilled water, if
the level is low. Pour the water into the cell
using a funnel. Do not overfill. Wait for the
water to reach the bottom of the refill hole.
Never overfill into the fill holes.
8Clean the battery terminals with a wire brush
every 6 to 8 months.
- Remove the connectors from the battery terminal
by moving them from side to side and gently
pulling them up. - Rub the wire brush into a paste of baking soda
mixed with distilled water. Gently scrub the
terminal to achieve a shine and remove dried acid
build-up. - Never use a rubber mallet to put terminals on a
battery. Always use terminal spreaders to widen
the terminal connectors opening to fit over the
battery terminals.
9Coat the battery with grease made for high
temperatures
- Applying the grease will protect the battery from
rust and corrosion. Acceleration makes the
battery to corrode.
10Inspect cell voltage every time you get an oil
change or have your car in for maintenance.
- Your mechanic will have a reliable method for
testing your voltage. A fully charged battery
will have a charge of 12.5 to 12.6 volts. Take
your car to an auto parts store for battery
testing between visits to your regular mechanic.
They can check the voltage and the charge for
you, and offer you products that may help with
your battery maintenance plan. Remember that a
battery under 12.5 volts should never be tested
until it reaches a fully charged level. A battery
tester will often show "Bad Battery" if the
battery is not fully charged even though the
battery is perfectly good!
11Check the battery insulator, if your car has one
- Some cars include an insulator to protect the
battery against very high temperatures, which can
dry out its fluid quickly. The insulator should
be in place and undamaged.
12Take your car in to your mechanic or shop for
regular servicing and tune-ups
- The best way to maintain your battery and your
entire car is to have it inspected and tested
every 3,000 miles (4,800 km) or 3 months,
whichever comes sooner.