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Discussion Starter · #1 ·
if i connect a 12v batt charger to powerpoint, attach my old 15min
quick charger to the 12v charger, and charge my 1700 like that??



will anything blow??



Nismo
 

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bleh eff...ekk...12V is from like acar ciggie lighter...powerpoint is some 240v?


 

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I know the theory sounds fine... the carger puts out 12v and so it should run your NiCad charger fine... BUT, I've been told by more than one person that it's not a good idea as the draw from your NiCad charger is more than your car battery charger can deal with.


I'm sure a more techo minded person will have a good answer for you though.
 
G

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Discussion Starter · #4 ·
yeah the 12v charger is a good one,



i did it once today cause i was desperate to run my car,

neither charger got hot, or was there any problem, but i dont reckon ill do it again



Nismo
 

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Premium Member
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Actually it will work fine... as long as you use a "resistor" type of 7.2V charger (eg clockwork or chargeleads).


It won't work for peak-detect chargers as these need a very stable source of voltage... as soon as your current rises towards the max of the battery charger, the supply voltage will drop and the peak charger will false-peak (and/or blow up). Peak-detect chargers must have a correctly REGULATED 12V supply.


One thing to watch out for is the true current rating of the 12V charger... if it only says "5A" it usually means 5A "peak" not "RMS = root mean square" = real DC current. (5A peak is less than 3.6A RMS)


Yes its as dodgy as power ratings in "PMPO" when you buy audio gear.
 

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i use a charger which takes power from a car battery, Ac power.. or any DC power source 9 - 18 volts





anywhoo.. for the meantime, till i make myself a cord for AC, (it has input.. and a damn weird input plug at that) ,

i use a car charger connected to the wall (240v mains)

and that connects to my remote controll charger, which i can plug
anything into.. it takes like 5 seconds to recognise power type and
battery type for charging.. then i select my amp rating, and walla.. a
charged battery.

.

ive been doing this for a month.. works great..

untill my electriction uncle makes me a plug (which it came with.. just
need the lead to the wall.. which i dont want to solder, just incase)
ill use this technique
 
G

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Discussion Starter · #7 ·
ahhhh awesome,

yeah im using my 15min quick timer charger,

about 20 mins will do a 1400

and 25 will do a 1700



ahhh good to know i wont blow anything



Nismo
 

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Premium Member
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6,579 Posts
Just pray that a possum doesn't decide to go powercable hopping and fry itself at your local substation, crossing the 415V or 22100V lines with your 240V feed.
Mucho fireworks from everything that's plugged in...


Does happen!!
 
G

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Discussion Starter · #9 ·
lol bugger



ohwell, i can only charge a batt once anyway,

only got one good one, rest are weird



Nismo
 
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