OT Halfords Don't you just love 'em - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Forum Ford Forum

» Auto Insurance
» Featured Product
» Wheel & Tire Center

Go Back   Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > Ford Cars and PAG Vehicles > PAG Vehicle Discussion > Land Rover
Register Home Forum Active Topics Photo Gallery Auto Loans Garage Mark Forums Read Auto Escrow

FordForums.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 09-01-2005, 16:01   #1 (permalink)
hugh
Guest
 
Posts: n/a
OT Halfords Don't you just love 'em

This is the scenario
Few days ago we had a power cut - went on for quite a while so decided
to use gas stove in camper van by the house to brew up.
Some time later somebody -let's not play the blame game here- well OK it
was SWMBO, returned kettle to van, but didn't quite close the sliding
door properly. Result this morning one totally flat battery.

Not to worry, get out Halfords Automatic Battery Charger, connect it up,
switch it on and - nothing. Slight hum tells me power is on. There's a
little orange light to tell you its charging and a little green light
to tell you when its gone into maintenance mode. There's EVEN a little
red light to tell you you've connected it the wrong way round - and
blown the fuse. There's a switch to choose between normal battery and
sealed battery and a switch for Bike or Other vehicle battery. What a
clever charger.

Dead as the proverbial dodo. Not a single light on. Perhaps it's gone to
meet it's maker. Auxiliary battery is right next to vehicle battery, so
quick check, and connect it to that - and yes it works. Little orange
light on - charging - soon followed by little green light - maintenance
mode.
Back to vehicle battery - nothing. Get out meter, no voltage. Rig up as
ammeter, no current. Get out test lamp. Connect "earth" lead to + on
vehicle battery and point to + on Aux battery and light comes on. So
vehicle battery is not high resistance/open circuit, so why the f***
won't it charge.

Can't get other vehicle alongside to use jump leads, only way would be
to tow out camper van onto road to get near it to use leads. Can't use
aux battery to start - it would destroy it.

Solution - put a jump lead from + on aux batt to + on vehicle batt to
see what happens. Just touched for an instant and charger which was
still connected, burst into life.

WHAT F****** USE IS A BATTERY CHARGER THAT WON'T CHARGE A TOTALLY FLAT
BATTERY?
--
hugh
Reply to address is valid at the time of posting
  Reply With Quote
Sponsored Links
Advertisement
 
Old 09-01-2005, 16:01   #2 (permalink)
Nige
Guest
 
Posts: n/a
Re: OT Halfords Don't you just love 'em

hugh wrote:
> This is the scenario
> Few days ago we had a power cut - went on for quite a while so decided
> to use gas stove in camper van by the house to brew up.
> Some time later somebody -let's not play the blame game here- well OK
> it was SWMBO, returned kettle to van, but didn't quite close the
> sliding door properly. Result this morning one totally flat battery.
>
> Not to worry, get out Halfords Automatic Battery Charger, connect it
> up, switch it on and - nothing. Slight hum tells me power is on.
> There's a little orange light to tell you its charging and a little
> green light to tell you when its gone into maintenance mode. There's
> EVEN a little red light to tell you you've connected it the wrong way
> round - and blown the fuse. There's a switch to choose between normal
> battery and sealed battery and a switch for Bike or Other vehicle
> battery. What a clever charger.
>
> Dead as the proverbial dodo. Not a single light on. Perhaps it's gone
> to meet it's maker. Auxiliary battery is right next to vehicle
> battery, so quick check, and connect it to that - and yes it works.
> Little orange light on - charging - soon followed by little green
> light - maintenance mode.
> Back to vehicle battery - nothing. Get out meter, no voltage. Rig up
> as ammeter, no current. Get out test lamp. Connect "earth" lead to +
> on vehicle battery and point to + on Aux battery and light comes on.
> So vehicle battery is not high resistance/open circuit, so why the
> f*** won't it charge.
>
> Can't get other vehicle alongside to use jump leads, only way would be
> to tow out camper van onto road to get near it to use leads. Can't use
> aux battery to start - it would destroy it.
>
> Solution - put a jump lead from + on aux batt to + on vehicle batt to
> see what happens. Just touched for an instant and charger which was
> still connected, burst into life.
>
> WHAT F****** USE IS A BATTERY CHARGER THAT WON'T CHARGE A TOTALLY FLAT
> BATTERY?


It's the type of battery, most wet cells cannot be brought back from dead, they need a low voltage cut
off & if the charger/usage circuit doesnt have one they die screaming mate. I think (going back in time)
you need a switch mode charger for a very dead cell battery?

Again, an expert will prove me wrong!

--
Subaru WRX (Annabel)

Landrover 110 County Station Wagon (Tyson)

'"Say hello to my little friend"


  Reply With Quote
Old 09-01-2005, 16:01   #3 (permalink)
steve Taylor
Guest
 
Posts: n/a
Re: OT Halfords Don't you just love 'em

Nige wrote:

> It's the type of battery, most wet cells cannot be brought back from dead, they need a low voltage cut
> off & if the charger/usage circuit doesnt have one they die screaming mate. I think (going back in time)
> you need a switch mode charger for a very dead cell battery?
>
> Again, an expert will prove me wrong!


Nicads and Nimh are also well, damp, internally. and they can be
resuscitated. Lead-acids can if they aren't left "Dodo dead" for long,
they can be brought back, but it takes a great deal of care. If lead
acids cells are left dead, the cell "sulphates" and it will not be the
same again.

Steve
  Reply With Quote
Old 09-01-2005, 16:01   #4 (permalink)
wayne@lardrover.co.uk
Guest
 
Posts: n/a
Re: OT Halfords Don't you just love 'em

On Thu, 1 Sep 2005 23:05:15 +0100, hugh <hugh@[127.0.0.1]> made me
spill my meths when he wrote:

>WHAT F****** USE IS A BATTERY CHARGER THAT WON'T CHARGE A TOTALLY FLAT
>BATTERY?


I can tell you feel better after getting that off your chest :)

I wonder if the flat battery was drawing too much from the charger and
it had some sort of overload protection? Supplementing it with the
other battery might have been enough for it to decide to play game?


--
Wayne Davies - Mobile 07989 556213 - Harrogate, N.Yorks, UK
  Reply With Quote
Old 09-02-2005, 02:01   #5 (permalink)
Tim Hobbs
Guest
 
Posts: n/a
Re: OT Halfords Don't you just love 'em

>
>WHAT F****** USE IS A BATTERY CHARGER THAT WON'T CHARGE A TOTALLY FLAT
>BATTERY?


I have the same charger and can tell you how this works...

If the battery has been left on a very low load for long enough to
totally feck it, the Halfords charger will charge it, but you need to
leave it connected for about a week (no really).

Alternatively, strap it in the aux position of a 101 and run it for 10
minutes (an electrical 'kick up the arse'). Then it will charge OK.


--

Tim Hobbs

'58 Series 2 88" aka "Stig"
'77 101FC Ambulance aka "Burrt"
'03 Volvo V70
  Reply With Quote
Old 09-02-2005, 03:06   #6 (permalink)
Alex
Guest
 
Posts: n/a
Re: OT Halfords Don't you just love 'em


>WHAT F****** USE IS A BATTERY CHARGER THAT WON'T CHARGE A TOTALLY FLAT
>BATTERY?


If it's a constant voltage battery charger, none at all. Modern
battery chargers are no use at all in circumstances like these (and
not a lot of use the rest of the time either) To ressurect batteries
in that manner you require a constant current battery charger, and a
lot of mucking about. While it is then technically possible to
ressurect the battery, it may not be possible, and the battery may not
be any good at all afterwards
  Reply With Quote
Old 09-02-2005, 03:08   #7 (permalink)
AJH
Guest
 
Posts: n/a
Re: OT Halfords Don't you just love 'em

On Fri, 02 Sep 2005 09:59:23 +0100, Tim Hobbs <tim@spam.com> wrote:

>
>If the battery has been left on a very low load for long enough to
>totally feck it, the Halfords charger will charge it, but you need to
>leave it connected for about a week (no really).


I have the same charger and one of those gel cell starter/aux/tyrepump
thingies for emergencies. They both work the same as they sense the
battery terminals for polarity, this is to protect them from wrong
polarity or dead shorts. As such they will not drive a load off the
clamps that has no voltage on it, bit of a b***** when I needed to run
my 12V diesel pump and couldn't get a vehicle near enough.

Easiest solution is to connect a second battery in parallel to the
dead one for a few seconds to fool the charger.

AJH
  Reply With Quote
Old 09-02-2005, 05:01   #8 (permalink)
Austin Shackles
Guest
 
Posts: n/a
Re: OT Halfords Don't you just love 'em

On or around Thu, 01 Sep 2005 23:45:22 +0100, steve Taylor
<steve@thetaylorfamily.org.uk> enlightened us thusly:

>Nige wrote:
>
>> It's the type of battery, most wet cells cannot be brought back from dead, they need a low voltage cut
>> off & if the charger/usage circuit doesnt have one they die screaming mate. I think (going back in time)
>> you need a switch mode charger for a very dead cell battery?
>>
>> Again, an expert will prove me wrong!

>
>Nicads and Nimh are also well, damp, internally. and they can be
>resuscitated. Lead-acids can if they aren't left "Dodo dead" for long,
>they can be brought back, but it takes a great deal of care. If lead
>acids cells are left dead, the cell "sulphates" and it will not be the
>same again.


yeah, but that's not "flat overnight", that's dead for months.

sounds like the chattery barger is a heap of shite. I have a nice fattish
Absaar one which just supplies power to the battery.
--
Austin Shackles. www.ddol-las.net my opinions are just that
Too Busy: Your mind is like a motorway. Sometimes it can be jammed by
too much traffic. Avoid the jams by never using your mind on a
Bank Holiday weekend.
from the Little Book of Complete B***ocks by Alistair Beaton.
  Reply With Quote
Old 09-02-2005, 15:02   #9 (permalink)
Lee_D
Guest
 
Posts: n/a
Re: OT Halfords Don't you just love 'em

"AJH" <sylva@despammed.com> wrote in message
news:sb2gh1thsrjtkmom8qlti9mbd7d1g09skn@4ax.com...
> Easiest solution is to connect a second battery in parallel to the
> dead one for a few seconds to fool the charger.
>
> AJH


Do you ever wish you hadn't binned something!

Lee D


  Reply With Quote
Old 09-03-2005, 04:01   #10 (permalink)
AJH
Guest
 
Posts: n/a
Re: OT Halfords Don't you just love 'em

On Fri, 2 Sep 2005 22:13:46 +0100, "Lee_D"
<newsgroupNOSPAM@NOSPAMlrproject.com> wrote:

>"AJH" <sylva@despammed.com> wrote in message
>news:sb2gh1thsrjtkmom8qlti9mbd7d1g09skn@4ax.com...
>> Easiest solution is to connect a second battery in parallel to the
>> dead one for a few seconds to fool the charger.
>>
>> AJH

>
>Do you ever wish you hadn't binned something!


Never happens, the problem is just finding the bit I'd saved "just in
case" amongst the piles of other debris I've saved. After an hour or
so looking for a bit I know I have somewhere I have to go down the
shop and buy a new one!

AJH
  Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > Ford Cars and PAG Vehicles > PAG Vehicle Discussion > Land Rover



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.2

All times are GMT -7. The time now is 03:50.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.6.0
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.