Someone has taken my charger and I can't work out from the manual what
specification I need to replace it - it is a small barrel connector
but I don't know what polarity or voltage is required - presumably
something like 6V?, but there is no polarity marking on the
screwdriver or in the manual specifications. Not even sure it is a DC
supply...
Can anyone help? I guess the charger probably says what voltage it
delivers on it...
TIA.
I managed to throw the charger for mine (same model) away by mistake,
thinking it went with a knackered old drill/driver that I was throwing out.
I looked up where to order B&D spares from (quick Google) and rang up and
quoted my credit card number. Ok, I could have cobbled something together
out of the electronic junk box I suppose, but I too was lacking the info you
are enquiring about, and in the end it was less hassle just to cough up for
the genuine article. Unfortunately, I cannot recall how much it cost - about
a tenner I think, including carriage.
HTH
Rick
Thanks for the tip - however, as it happens I have access to all
manner of transformers, so I just wanted to know the voltage rating.
Luckily B & Q were prepared to open a pack and let me have a look - I
popped in this afternoon and apparently its 5.2V a.c. - as stamped on
the transformer casing,
Ah, but is that on-load or off load? I've been caught out like that before.
Rick
> Ah, but is that on-load or off load? I've been caught out like that
> before.
The stated voltage from a transformer is usually given as its on load
condition - anything else would be pointless. Also, the charging voltage
for a Ni-Cad isn't that critical - it's the current which matters.
--
*A hangover is the wrath of grapes.
Dave Plowman dave....@argonet.co.uk London SW 12
RIP Acorn
OK, I didn't explain. I have found that the voltage quoted in chargers and
what used to be called "battery eliminators" (PSUs) often bears little
relation to what actually comes out of them. However, you are quite right
that in the case of a NiCd charger it will probably be current limited in
some crude way and the exact voltage is a bit academic. It's PSUs that are
really iffy - the regulation is often absolutely appalling.
Rick
The voltage quoted on any charger will be nominal since most will vary
according to the load. Apart from perhaps a constant voltage charger
designed for SLA batteries. With a 'battery eliminator', the battery it's
designed to replace will have a varying voltage according to state, so
assuming the eliminator stays within that window it should work ok.
With a regulated PSU, it should regulate reasonably well within its stated
load - but could well show nonsense if you check it open circuit.
But in the OP's case, it's purely a transformer as its output is AC.
--
*I have a degree in liberal arts -- do you want fries with that