April 29th, 2009
April 28th 2008
April 28th 2008
Feb. 25th 2008
By Emanuel Hillmann
We all benefit from using lead-acid
batteries. Our cars and golf cars will go nowhere without them. Many
niceties of civilization maintained outside electrical grid systems
like a refrigerator or TV in our RV would not be possible without
batteries. Of course, wind and solar systems depend on battery
banks. Those batteries can cost us a pretty penny to replace and
most of the time last way below their supposed life expectancy.
How do I get the most out of my
batteries?
To better understand what to do we will
need to answer a couple questions:
a. What is a
battery? A battery is a device in which chemical energy is
transformed into electrical energy. That energy can be used in a
controlled manner.
b. How does a battery work?
In a normal battery we have three basic elements: one plate made of
lead, an electrolyte of sulfuric acid and another plate made of lead
oxide. When the battery is discharged, the sulfuric acid in the
electrolyte reacts with the lead and lead oxide releasing
electricity, forming lead sulfate. This leaves a watery electrolyte
solution. When a battery is completely discharged, what is left is
lead sulfate and water. When you start recharging the battery, the
lead sulfate is broken apart by the electric current. This returns
the system to the original elements: lead and lead oxide on the
plates and sulfuric acid in the electrolyte, for the most part.
We said for the most part because an
incomplete recharge is going to leave behind some lead sulfate. The
next time you use the energy from the battery, the newly formed
sulfate is going to attach to the left over sulfates making stronger
sulfates. The problem is that a normal battery recharge is not going
to be able to break them down completely. So you will have more and
more sulfates that now are not breaking up and gradually are
shortening the life of your batteries.
What to do?
First make sure you recharge your
batteries completely and regularly even if you do not use your
vehicle.
You can use a good electronic desulfator.
It can dissolve the otherwise hard to eliminate sulfates, extending
the battery life.
After testing many powders and liquids
sold to eliminate sulfates, I would not recommend using those kinds
of substances.
Overcharging, also called equalizing is
another action that is not recommended. It will end up killing your
batteries in the long run despite any apparent immediate
improvements.
As we mentioned earlier there are
chemical reactions charging and discharging batteries. Heat
accelerates those reactions causing a battery to discharge faster.
It is important to protect your batteries as much as possible from
high temperatures. It is better to store in a cool place. Park your
cars in a shadowy place and avoiding as much as possible the direct
sun.
If heat can dramatically reduce the
battery life, ice can destroy it completely. Do not ignore icy
weather. If you are going to leave your car or golf car for months
in a place that can be hit by extensive freezing temperatures or you
expect a freeze, make sure to fully charge your batteries before the
freezing temperatures start. If you are going to leave for months at
the time a trickle charger is very useful to maintain batteries in a
good condition. The risk of a discharged battery hit by freezing
temperatures is that the water formed by the discharge of the
battery when frozen can crack the battery, destroying it.
Talking about water, if your batteries
are the unsealed types make sure to regularly water them.
The worst enemy of your batteries is
neglect. Batteries well cared for last two times longer than
neglected ones.
Don’ts
1.
Do not equalize and/or overcharge your batteries.
2.
Do not store your batteries in hot places or under direct sun
exposure.
3.
Do not use solid or liquid additives in your batteries.
4.
Do not neglect to water and only use distilled water. Any
other water contains minerals that are bad for your battery.
5.
Do not neglect to charge regularly.
6.
Do not expose directly your batteries to very low temperatures
to prevent any risk of cracking.
Do’s
1.
Regularly charge your batteries. Let them to get fully charged
before disconnecting the charger.
2.
Use a good electronic desulfator that will help to eliminate
hard sulfates from the plates.
3.
Store cars and batteries in cool places or at least away from
direct sun exposure.
4.
Water batteries regularly if they are the unsealed type using
distilled water.
5.
Protect batteries from being directly exposed to extreme cold
weather.
These simple rules will help you to get
the most out of your batteries.