Frequently Asked Question
Is There A Difference in Storage Batteries?
There are basically two types of storage batteries,
which are being
used at this time for electrical home power storage. They either use an
acid or alkaline solution in the batteries. We will point out the
as well as the disadvantages in each type so that you can draw your own
conclusion to the type that you would rather have. This is a very
question since it will require a very detailed explanation. We will
it in two parts. Last week we will discussed the commonly known lead
type and this week we will finish our discussion with the alkaline
There are several major advantages in using alkaline
type of batteries.
The alkaline batteries are made with nickel cadmium or nickel iron. The
major difference between the two is that the cadmium ones has a faster
discharge curve however the cadmium is very bad for the environment.
nickel iron does not have any environmental problems. Sometimes these
are more sluggish or slower to respond when a load is applied. They
must be broken in or run through several cycles before they reach their
capacity. The main advantage that I have found is that you can add to
storage system anytime you desire, as the they do not have any memory
therefore you won't be penalized any time you want to increase your
system. They both have a solution that does not freeze and therefore
can use them in a cold climate and not worry about freezing.
The new alkaline batteries can be left unattended for
long periods of
time and they can be fully discharged without any damage done to their
life of a normal 4,000 cycles. Which if properly cared for will last
approximately 20 years in a home power system. It is possible to have
reconditioned, which will restore them near to their original
With lead acid type it is impossible to recondition them as they use
which destroys the cells, where as the alkaline use, a solution of
hydroxide, potassium hydroxide, and distilled water which does not
the cells or freeze.
From time to time there are some reconditioned
nickel-cadmium on the
market which cost about one-third the amount of new ones. We have used
this type of reconditioned ones here on the DO IT and have better
with them than using the lead acid ones. However as with any used
they have their drawbacks. We feel that if we could afford new
then we may use them, however the cost is prohibitive as well as the
problems. We are recently installed a set of New nickel iron batteries.
These batteries have recently become available from Europe and we are
happy with them to date. We have found that they out perform any other
batteries that we have used to date. Our supplier of these batteries
them through several cycles and supplies them ready to go. This large
supplier also guarantees them to have at least 90 percent capacity for
at least five years, which is better than any other guarantee on the
at this time.
We feel that choosing the proper batteries is a very
of your whole home power system, and with careful consideration you can
have a storage system that will give you years of trouble free service.