I hope you are saying, the cell phone battery charger
I asked, - Can I use 8 volt cell phone battery charger to charge the
I can try to get closer to the exact volts for the cell phone charger, I am
sort of worried whether there isa negative or a positive side to the cell
phone charger, and how to determine. There is very few persons here in Togo with
that education or aptitudes to talk with, and then the language is Mina or
French. I think the deep cycle could be a problem, as I for sure will completely
drain and leave non-charged for days. The batteries appeared to be sealed, I do
not have much choice here Chris.
I do not think I can buy a regular battery charger unless I go back to Lome,
and with a lot of trouble.
Note, getting hot, ruining a battery, using the wrong way is for sure what I
will do, I can only use what I have to use here and available.
Andy in Togo, West Africa April 2007
As I understand it there are batteries and there are batteries. The
best to use are "deep cycle batteries" (not the "starter" batteries used to just
turn over an engine). A common type of deep cycle battery being golf cart
batteries. They are designed to be deeply discharged running electric
motor vehicles. But deep cycling starter batteries will ruin them after a
few deep discharges, so they shouldn't be seriously discharged and should be be
quickly recharged. Lead-Acid starter batteries should be recharged soon
after each discharge to get any length of life. Lead-acid batteries can
die from sulfation from several extremely hot days (or cold days) if they are
left discharged. Don't refill with tap water as the minerals screw up the
electrolyte. Use distilled water only, but the sealed gel type are better.
And there are chargers and there are chargers. Walmart quality
chargers aren't the best but are suitable for starter batteries (you just have
to keep starter batteries topped off all the time). They're are just
designed to be continuously charged by an alternator on a vehicle. Fact of
the matter, all lead-acid batteries of all types should be recharged right after
discharge. The best chargers are 3-stage chargers rated for a particular
voltage battery and aren't commonly found, but are sold by specialty battery
firms, mostly on the Internet. Solar trickle chargers are great and keep
batteries topped off - some can be selcted to output either 6V or 12V and have
clamps for hooking up to a batteries poles.
An interesting thing
about AC chargers for voltages like this is that they can be used as power
supplies themselves as they output DC current. I know a guy that made a
Camper out of a VW Van and he electrically powers the fridge and other 12V
appliances directly off a car battery charger -- he rolls up to a campsite with
plugins, throws out an extension cord and plugs in the battery charger to
directly power his TV, fridge, lights and other stuff. The charger has a
select switch for either 6V or 12V output. They don't want you to use it
this way, but it works.
Watch out for the battery getting hot if you try
that 8V charger - you don't want to boil the electrolyte or burn up the cell
phone charger. It'd be nice if it works, but I think you need a rated
charger for 6 volts. Tipping a battery like this against yourself carrying
it can allow sulpheric acid to leak onto your clothes and eat holes through them
and burn your skin. Wash as soon as possible with H20 and change your
Hope any of this helps.
On EBAY I got a small
folding 2.2 Watt i-Sun/Batt Pak solar battery charger combo (holding 8 AA's =
12V) running right now and have it parked next to a solar cooker made out of a
tire inner tube with a pane of glass and a flat plastic fresnel lens which is
reaching 350 degrees F. by 11 AM. Making Chicken Rice. My sun's not
as good as yours, but any bright day is great.
- Chris Hello
I am thinking I am going to buy a 6 volt motorcycle battery.
Can I use 8 volt cell phone battery charger to charge the battery?
Andy in Togo
Thank you, Andy HoboTraveler.com https://www.hobotraveler.com/blogger.html