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FMurtz
Guest

Fri Dec 07, 2018 7:45 am   



I have a few Aldi intelligent chargers and they blow up, has anyone
else had this problem?
The older of the two I can find at the moment has this.
https://imgur.com/a/1DxVL0R
the newer has a similar PWN current mode controller with the top
completely blown of and looks to be UC3842AN do not know what the
resistor is.
When I tried to buy at RS have to buy min of three, If they are going
to blow up may be worth it.
Don't know if the two different numbered ICs are similar (have to check
data sheets.
When they work they are alright sort of but I do not think they are all
that smart, sometimes leave them on the motor bike forever and when I
look they are kactus,I do not think they are good at floating on a bike
battery even though they have a bike setting ( the bike has a big
battery and the last time the the electrolyte had gone low.

Computer Nerd Kev
Guest

Fri Dec 07, 2018 7:45 am   



FMurtz <haggisz_at_hotmail.com> wrote:
Quote:
I have a few Aldi intelligent chargers and they blow up, has anyone
else had this problem?
The older of the two I can find at the moment has this.
https://imgur.com/a/1DxVL0R
the newer has a similar PWN current mode controller with the top
completely blown of and looks to be UC3842AN do not know what the
resistor is.
When I tried to buy at RS have to buy min of three, If they are going
to blow up may be worth it.
Don't know if the two different numbered ICs are similar (have to check
data sheets.


They're from the same series, just slightly different specs:
http://www.ti.com/product/UC3842

Quote:
When they work they are alright sort of but I do not think they are all
that smart, sometimes leave them on the motor bike forever and when I
look they are kactus,I do not think they are good at floating on a bike
battery even though they have a bike setting ( the bike has a big
battery and the last time the the electrolyte had gone low.


The chips used in the power supplies might be fakes, but it could
also be a design problem such as too much power dissipation or
latch-up of the output due to a voltage spike (just two that come
to mind). In the latter case, replacing the chips will only buy
you a bit more time (at best) until the new ones go the same way
(and if you're unlucky, perhaps start a fire next time).

I don't know what these Aldi "intelligent chargers" are like, but if
they're designed/built so badly that they're burning out en-masse,
I wouldn't be inclined to keep using them. Sounds like the type of
cheap Chinese rubbish that I wouldn't trust with mains power in the
first place.

--
__ __
#_ < |\| |< _#

news18
Guest

Sat Dec 08, 2018 2:45 am   



On Fri, 07 Dec 2018 17:02:57 +1100, FMurtz wrote:

Quote:
I have a few Aldi intelligent chargers and they blow up, has anyone
else had this problem?
The older of the two I can find at the moment has this.
https://imgur.com/a/1DxVL0R the newer has a similar PWN current mode
controller with the top completely blown of and looks to be UC3842AN do
not know what the resistor is.
When I tried to buy at RS have to buy min of three, If they are going
to blow up may be worth it.
Don't know if the two different numbered ICs are similar (have to check
data sheets.
When they work they are alright sort of but I do not think they are all
that smart, sometimes leave them on the motor bike forever and when I
look they are kactus,I do not think they are good at floating on a bike
battery even though they have a bike setting ( the bike has a big
battery and the last time the the electrolyte had gone low.


These "cheap" devices do not have the smarts to cater for many likely
situations and fast chargers are notoriously bad at doing float tasks.
Also, anything with electrolyte doesn't like log tem float charging. it
is a good way to destroy a battery. Try doing the long term float through
a timer that opperates for one day a week/fortnight/etc. you can not
float a batter indefinitelyt, they have to be exercised.

keithr0
Guest

Mon Dec 10, 2018 7:45 am   



On 12/7/2018 4:02 PM, FMurtz wrote:
Quote:
I have a few Aldi intelligent chargers  and they blow up, has anyone
else had this problem?


I have had one for a couple of years without problem, I just use it to
keep my jetski battery charged. I leave it on for a couple of days
usually but not permanently.

Quote:
The older of the two I can find at the moment has this.
https://imgur.com/a/1DxVL0R
the newer has a similar PWN current mode controller with the top
completely blown of and looks to be UC3842AN do not know what the
resistor is.
 When I tried to buy at RS have to buy min of three, If they are going
to blow up may be worth it.
Don't know if the two different numbered ICs are similar (have to check
data sheets.
When they work they are alright sort of but I do not think they are all
that smart, sometimes leave them on the motor bike forever and when I
look they are kactus,I do not think they are good at floating on a bike
battery even though they have a bike setting  ( the bike has a big
battery and the last time the the electrolyte had gone low.




FMurtz
Guest

Mon Dec 10, 2018 8:45 am   



keithr0 wrote:
Quote:
On 12/7/2018 4:02 PM, FMurtz wrote:
I have a few Aldi intelligent chargers  and they blow up, has anyone
else had this problem?

I have had one for a couple of years without problem, I just use it to
keep my jetski battery charged. I leave it on for a couple of days
usually but not permanently.

The older of the two I can find at the moment has this.
https://imgur.com/a/1DxVL0R
the newer has a similar PWN current mode controller with the top
completely blown of and looks to be UC3842AN do not know what the
resistor is.
  When I tried to buy at RS have to buy min of three, If they are
going to blow up may be worth it.
Don't know if the two different numbered ICs are similar (have to
check data sheets.
When they work they are alright sort of but I do not think they are
all that smart, sometimes leave them on the motor bike forever and
when I look they are kactus,I do not think they are good at floating
on a bike battery even though they have a bike setting  ( the bike has
a big battery and the last time the the electrolyte had gone low.




I left it too long set on motor cycle and I read somewhere that that
setting on a big battery causes it to evaporate electrolyte.
Do not know why but when I found it not working the electrolyte was
level or just below plates
I am going to try no name 5 for a dollar chips for an experiment to
repair (instead of $16.00 for three from RS)
These intelligent chargers are not all that cheap by aldi standards,
think they were $30.00 or so

news18
Guest

Mon Dec 10, 2018 9:45 am   



On Mon, 10 Dec 2018 18:42:45 +1100, FMurtz wrote:


Quote:
I left it too long set on motor cycle and I read somewhere that that
setting on a big battery causes it to evaporate electrolyte.
Do not know why but when I found it not working the electrolyte was
level or just below plates


You might get the battery working agin if you can replace the
electrolyte. Well that works a few time on deep cycle lead acid, but
impossible on SLA. YMMV

Quote:
I am going to try no name 5 for a dollar
chips for an experiment to repair (instead of $16.00 for three from RS)
These intelligent chargers are not all that cheap by aldi standards,
think they were $30.00 or so


My rule of thumb is that a good charger costs more than the battery does.

FMurtz
Guest

Mon Dec 10, 2018 10:45 am   



news18 wrote:
Quote:
On Mon, 10 Dec 2018 18:42:45 +1100, FMurtz wrote:


I left it too long set on motor cycle and I read somewhere that that
setting on a big battery causes it to evaporate electrolyte.
Do not know why but when I found it not working the electrolyte was
level or just below plates

You might get the battery working agin if you can replace the
electrolyte. Well that works a few time on deep cycle lead acid, but
impossible on SLA. YMMV


Went on about 300 km ride with lots of pub stops (but I do not drink The
others did)through southern highlands and coast on Saturday and it
started each stop.
See if it starts in a weeks time without a charge.

Quote:

I am going to try no name 5 for a dollar
chips for an experiment to repair (instead of $16.00 for three from RS)
These intelligent chargers are not all that cheap by aldi standards,
think they were $30.00 or so

My rule of thumb is that a good charger costs more than the battery does.


Clocky
Guest

Fri Dec 14, 2018 5:45 pm   



On 10/12/2018 3:42 pm, FMurtz wrote:
Quote:
keithr0 wrote:
On 12/7/2018 4:02 PM, FMurtz wrote:
I have a few Aldi intelligent chargers  and they blow up, has anyone
else had this problem?

I have had one for a couple of years without problem, I just use it to
keep my jetski battery charged. I leave it on for a couple of days
usually but not permanently.

The older of the two I can find at the moment has this.
https://imgur.com/a/1DxVL0R
the newer has a similar PWN current mode controller with the top
completely blown of and looks to be UC3842AN do not know what the
resistor is.
  When I tried to buy at RS have to buy min of three, If they are
going to blow up may be worth it.
Don't know if the two different numbered ICs are similar (have to
check data sheets.
When they work they are alright sort of but I do not think they are
all that smart, sometimes leave them on the motor bike forever and
when I look they are kactus,I do not think they are good at floating
on a bike battery even though they have a bike setting  ( the bike
has a big battery and the last time the the electrolyte had gone low.




I left it too long set on motor cycle and I read somewhere that that
setting on a big battery causes it to evaporate electrolyte.
Do not know why but when I found it not working the electrolyte was
level or just below plates
I am going to try no name 5 for a dollar chips for an experiment to
repair (instead of $16.00 for three from RS)
These intelligent chargers are not all that cheap  by aldi standards,
think they were $30.00 or so


Cheap shit IOW.

noel
Guest

Sat Dec 22, 2018 1:45 am   



On Fri, 07 Dec 2018 17:02:57 +1100, FMurtz wrote:

Quote:
I have a few Aldi intelligent chargers and they blow up, has anyone
else had this problem?
The older of the two I can find at the moment has this.
https://imgur.com/a/1DxVL0R the newer has a similar PWN current mode
controller with the top completely blown of and looks to be UC3842AN do
not know what the resistor is.
When I tried to buy at RS have to buy min of three, If they are going
to blow up may be worth it.
Don't know if the two different numbered ICs are similar (have to check
data sheets.
When they work they are alright sort of but I do not think they are all
that smart, sometimes leave them on the motor bike forever and when I
look they are kactus,I do not think they are good at floating on a bike
battery even though they have a bike setting ( the bike has a big
battery and the last time the the electrolyte had gone low.


send one to bigclivedotcom Smile

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