Replacing dead NiCads tools with mains power supply?
 

Several tools with rechargeable batteries have failed,
one is a LIDL nailer/stapler, with a 18volt 1.3amp battery.

Could I dismantle the battery case and power the stapler from the mains
using something like Maplin's

High Power Multi-Voltage Universal Laptop Power...
* Universal input voltage for use all over the world with suitable
travel adaptors
* Adjustable output voltage DC 12, 14, 15, 16, 18, 18.5, 19, 19.5,
20, 22, 24V
* 6 amp to 8.5 amp current; dependent on voltage setting
http://www.maplin.co.uk/high-power-m...r-supply-98766

OR
Triple Power Supply
* DC 0 - 30V (2.5A), fixed DC 5 and 12V (0.5A) outputs
* Current can be limited from 0 to 2.5A using the ‘current’ control.
Triple Power Supply

OR something cheaper?

[g]

Replacing dead NiCads tools with mains power supply?
 

george [dicegeorge] wrote:
Several tools with rechargeable batteries have failed,
one is a LIDL nailer/stapler, with a 18volt 1.3amp battery.

Could I dismantle the battery case and power the stapler from the mains
using something like Maplin's

High Power Multi-Voltage Universal Laptop Power...
* Universal input voltage for use all over the world with suitable
travel adaptors
* Adjustable output voltage DC 12, 14, 15, 16, 18, 18.5, 19, 19.5, 20,
22, 24V
* 6 amp to 8.5 amp current; dependent on voltage setting
http://www.maplin.co.uk/high-power-m...r-supply-98766


OR
Triple Power Supply
* DC 0 - 30V (2.5A), fixed DC 5 and 12V (0.5A) outputs
* Current can be limited from 0 to 2.5A using the ‘current’ control.
Triple Power Supply

OR something cheaper?

[g]
Very unlikely to be usable. Peak current from nicads is far greater than
the supplies you list.

The battery you quote would be 18v 1.3Ah which is NOT the same as 1.3amps

Just buy new nicads for it.
Bob

Replacing dead NiCads tools with mains power supply?
 

On Jun 8, 10:03*pm, Bob Minchin
wrote:
george [dicegeorge] wrote:
Several tools with rechargeable batteries have failed,
one is a LIDL nailer/stapler, with a 18volt 1.3amp battery.

Could I dismantle the battery case and power the stapler from the mains
using something like Maplin's

High Power Multi-Voltage Universal Laptop Power...
* Universal input voltage for use all over the world with suitable
travel adaptors
* Adjustable output voltage DC 12, 14, 15, 16, 18, 18.5, 19, 19.5, 20,
22, 24V
* 6 amp to 8.5 amp current; dependent on voltage setting
http://www.maplin.co.uk/high-power-m...sal-laptop-pow...

OR
Triple Power Supply
* DC 0 - 30V (2.5A), fixed DC 5 and 12V (0.5A) outputs
* Current can be limited from 0 to 2.5A using the ‘current’ control..
Triple Power Supply

OR something cheaper?

[g]

Very unlikely to be usable. Peak current from nicads is far greater than
the supplies you list.

The battery you quote would be 18v 1.3Ah which is NOT the same as 1.3amps

Just buy new nicads for it.
Bob


In principle its doable, but as Bob says in practice you'd need a high
current supply. 2.5A is never going to work. Computer supplies provide
a lot more current, and those in series could supply 30A. (You'd need
to tweak the earthing, and convince them to operate)

Another option is to use an external lead acid battery that sits on
the floor, with 12v tools. Any other voltage is also runnable if
you're willing to open a battery. Lead acids don't charge happily from
NiCd chargers.


NT

Replacing dead NiCads tools with mains power supply?
 

On Jun 8, 9:35*pm, "george [dicegeorge]"
wrote:

Could I dismantle the battery case and power the stapler from the mains
using something like Maplin's

I had need of a bit of compressed air recently and ran a car tyre pump
(normally run off the car cigarette ligher) off a 230/12V transformer
with a bridge rectifier. It wasn't happy and didn't want to go above
0.3 bar, although it will happily do 4 or 6 bar for its intended use.
The 0.3 bar was adequate for what I needed (leak testing with an ultra-
sonic leak detector) so i didn't persist. I assumed the current draw
was more than the transformer would supply for the maximum pressure
part of the stroke. You could probably get it to run properly with
some smoothing capacitors or a 12V lead acid battery on the outlet.

The same tranformer & rectifier arrangement has run a pressurization
unit (which has a similar diaphragm pump) quite happily up to 2 or 3
bar (water pressure) when used on the 24V terminals.

Probably cheaper to get Ni-cads, as the man said, if you put any value
on the time you'd spend trying to get such a lash-up to run reliably.

Replacing dead NiCads tools with mains power supply?
 

On 08/06/11 22:03, Bob Minchin wrote:
george [dicegeorge] wrote:
Several tools with rechargeable batteries have failed,
one is a LIDL nailer/stapler, with a 18volt 1.3amp battery.

Could I dismantle the battery case and power the stapler from the mains
using something like Maplin's

High Power Multi-Voltage Universal Laptop Power...
* Universal input voltage for use all over the world with suitable
travel adaptors
* Adjustable output voltage DC 12, 14, 15, 16, 18, 18.5, 19, 19.5, 20,
22, 24V
* 6 amp to 8.5 amp current; dependent on voltage setting
http://www.maplin.co.uk/high-power-m...r-supply-98766



OR
Triple Power Supply
* DC 0 - 30V (2.5A), fixed DC 5 and 12V (0.5A) outputs
* Current can be limited from 0 to 2.5A using the ‘current’ control.
Triple Power Supply

OR something cheaper?

[g]
Very unlikely to be usable. Peak current from nicads is far greater than
the supplies you list.

The battery you quote would be 18v 1.3Ah which is NOT the same as 1.3amps

Just buy new nicads for it.
Bob
oh yes, now I look again it is 1.3Ah
which means 1.3 amps at 18volts for an hour
but as you say it probably uses a lot more than 1.3 amps when its stapling.

Replacing dead NiCads tools with mains power supply?
 

george [dicegeorge] wrote:
On 08/06/11 22:03, Bob Minchin wrote:
george [dicegeorge] wrote:
Several tools with rechargeable batteries have failed,
one is a LIDL nailer/stapler, with a 18volt 1.3amp battery.

Could I dismantle the battery case and power the stapler from the mains
using something like Maplin's

High Power Multi-Voltage Universal Laptop Power...
* Universal input voltage for use all over the world with suitable
travel adaptors
* Adjustable output voltage DC 12, 14, 15, 16, 18, 18.5, 19, 19.5, 20,
22, 24V
* 6 amp to 8.5 amp current; dependent on voltage setting
http://www.maplin.co.uk/high-power-m...r-supply-98766




OR
Triple Power Supply
* DC 0 - 30V (2.5A), fixed DC 5 and 12V (0.5A) outputs
* Current can be limited from 0 to 2.5A using the €˜current control.
Triple Power Supply

OR something cheaper?

[g]
Very unlikely to be usable. Peak current from nicads is far greater than
the supplies you list.

The battery you quote would be 18v 1.3Ah which is NOT the same as 1.3amps

Just buy new nicads for it.
Bob
oh yes, now I look again it is 1.3Ah
which means 1.3 amps at 18volts for an hour
but as you say it probably uses a lot more than 1.3 amps when its stapling.

yeah. Prolly peaks out at 30A or so.

Replacing dead NiCads tools with mains power supply?
 

"The Natural Philosopher" wrote in message
...
george [dicegeorge] wrote:
On 08/06/11 22:03, Bob Minchin wrote:
george [dicegeorge] wrote:
Several tools with rechargeable batteries have failed,
one is a LIDL nailer/stapler, with a 18volt 1.3amp battery.

Could I dismantle the battery case and power the stapler from the mains
using something like Maplin's

High Power Multi-Voltage Universal Laptop Power...
* Universal input voltage for use all over the world with suitable
travel adaptors
* Adjustable output voltage DC 12, 14, 15, 16, 18, 18.5, 19, 19.5, 20,
22, 24V
* 6 amp to 8.5 amp current; dependent on voltage setting
http://www.maplin.co.uk/high-power-m...r-supply-98766



OR
Triple Power Supply
* DC 0 - 30V (2.5A), fixed DC 5 and 12V (0.5A) outputs
* Current can be limited from 0 to 2.5A using the €˜current control.
Triple Power Supply

OR something cheaper?

[g]
Very unlikely to be usable. Peak current from nicads is far greater than
the supplies you list.

The battery you quote would be 18v 1.3Ah which is NOT the same as
1.3amps

Just buy new nicads for it.
Bob
oh yes, now I look again it is 1.3Ah
which means 1.3 amps at 18volts for an hour
but as you say it probably uses a lot more than 1.3 amps when its
stapling.

yeah. Prolly peaks out at 30A or so.

Doubtful..
I have never taken one apart but I would imagine they use a motor to drive a
stepped cam.
This would lift a sprung hammer and drop it to staple.
Much cheaper than using a solenoid and it doesn't take much power.
However the motor is a reactive load so the initial start could be hundreds
of amps for a very short time, the sort of thing a capacitor can supply.
They could reduce the starting load by making sure the motor always stopped
at the top of the slope and have it "level", this also reduces the time
between pressing the trigger and the hammer dropping. The motor winds it
back up post stapling.

Replacing dead NiCads tools with mains power supply?
 

On Jun 9, 12:47*am, "george [dicegeorge]"
wrote:
oh yes, now I look again it is 1.3Ah
which means 1.3 amps at 18volts for an hour

Or 13A at 18V for 1/10th an hour == 6 minutes

Or 26A at 18V for 3 minutes

etc.

Replacing dead NiCads tools with mains power supply?
 

On Jun 9, 8:19*am, "dennis@home"
wrote:
"The Natural Philosopher" wrote in ...









george [dicegeorge] wrote:
On 08/06/11 22:03, Bob Minchin wrote:
george [dicegeorge] wrote:
Several tools with rechargeable batteries have failed,
one is a LIDL nailer/stapler, with a 18volt 1.3amp battery.

Could I dismantle the battery case and power the stapler from the mains
using something like Maplin's

High Power Multi-Voltage Universal Laptop Power...
* Universal input voltage for use all over the world with suitable
travel adaptors
* Adjustable output voltage DC 12, 14, 15, 16, 18, 18.5, 19, 19.5, 20,
22, 24V
* 6 amp to 8.5 amp current; dependent on voltage setting
http://www.maplin.co.uk/high-power-m...sal-laptop-pow....

OR
Triple Power Supply
* DC 0 - 30V (2.5A), fixed DC 5 and 12V (0.5A) outputs
* Current can be limited from 0 to 2.5A using the ‘current’ control.
Triple Power Supply

OR something cheaper?

[g]
Very unlikely to be usable. Peak current from nicads is far greater than
the supplies you list.

The battery you quote would be 18v 1.3Ah which is NOT the same as
1.3amps

Just buy new nicads for it.
Bob
oh yes, now I look again it is 1.3Ah
which means 1.3 amps at 18volts for an hour
but as you say it probably uses a lot more than 1.3 amps when its
stapling.

yeah. Prolly peaks out at 30A or so.

Doubtful..
I have never taken one apart but I would imagine they use a motor to drive a
stepped cam.
This would lift a sprung hammer and drop it to staple.
Much cheaper than using a solenoid and it doesn't take much power.
However the motor is a reactive load so the initial start could be hundreds
of amps for a very short time, the sort of thing a capacitor can supply.
They could reduce the starting load by making sure the motor always stopped
at the top of the slope and have it "level", this also reduces the time
between pressing the trigger and the hammer dropping. The motor winds it
back up post stapling.

http://www.rutlands.co.uk/cgi-bin/ps...&guide_id= 22
suggests that electric nail guns use a solenoid.

Replacing dead NiCads tools with mains power supply?
 

On Jun 9, 8:19*am, "dennis@home"
wrote:
"The Natural Philosopher" wrote in

yeah. Prolly peaks out at 30A or so.

Doubtful..

However the motor is a reactive load so the initial start could be hundreds
of amps for a very short time,

I know which one I doubt less.

MBQ

Replacing dead NiCads tools with mains power supply?
 

On 08/06/11 22:03, Bob Minchin wrote:
george [dicegeorge] wrote:
Several tools with rechargeable batteries have failed,
one is a LIDL nailer/stapler, with a 18volt 1.3amp battery.

Could I dismantle the battery case and power the stapler from the mains
using something like Maplin's

High Power Multi-Voltage Universal Laptop Power...
* Universal input voltage for use all over the world with suitable
travel adaptors
* Adjustable output voltage DC 12, 14, 15, 16, 18, 18.5, 19, 19.5, 20,
22, 24V
* 6 amp to 8.5 amp current; dependent on voltage setting
http://www.maplin.co.uk/high-power-m...r-supply-98766



OR
Triple Power Supply
* DC 0 - 30V (2.5A), fixed DC 5 and 12V (0.5A) outputs
* Current can be limited from 0 to 2.5A using the ‘current’ control.
Triple Power Supply

OR something cheaper?

[g]
Very unlikely to be usable. Peak current from nicads is far greater than
the supplies you list.

The battery you quote would be 18v 1.3Ah which is NOT the same as 1.3amps

Just buy new nicads for it.
Bob
only £1`45 for a new battery,
i'd feared it would be a lot more!

https://www.walter-service.com/

a reply within an hour!

Aldi service not as bad as I'd feared.

[g]

Replacing dead NiCads tools with mains power supply?
 

dennis@home wrote:


"The Natural Philosopher" wrote in message
...
george [dicegeorge] wrote:
On 08/06/11 22:03, Bob Minchin wrote:
george [dicegeorge] wrote:
Several tools with rechargeable batteries have failed,
one is a LIDL nailer/stapler, with a 18volt 1.3amp battery.

Could I dismantle the battery case and power the stapler from the
mains
using something like Maplin's

High Power Multi-Voltage Universal Laptop Power...
* Universal input voltage for use all over the world with suitable
travel adaptors
* Adjustable output voltage DC 12, 14, 15, 16, 18, 18.5, 19, 19.5, 20,
22, 24V
* 6 amp to 8.5 amp current; dependent on voltage setting
http://www.maplin.co.uk/high-power-m...r-supply-98766




OR
Triple Power Supply
* DC 0 - 30V (2.5A), fixed DC 5 and 12V (0.5A) outputs
* Current can be limited from 0 to 2.5A using the €˜current control.
Triple Power Supply

OR something cheaper?

[g]
Very unlikely to be usable. Peak current from nicads is far greater
than
the supplies you list.

The battery you quote would be 18v 1.3Ah which is NOT the same as
1.3amps

Just buy new nicads for it.
Bob
oh yes, now I look again it is 1.3Ah
which means 1.3 amps at 18volts for an hour
but as you say it probably uses a lot more than 1.3 amps when its
stapling.

yeah. Prolly peaks out at 30A or so.

Doubtful..
I have never taken one apart but I would imagine they use a motor to
drive a stepped cam.
This would lift a sprung hammer and drop it to staple.
Much cheaper than using a solenoid and it doesn't take much power.
However the motor is a reactive load so the initial start could be
hundreds of amps for a very short time, the sort of thing a capacitor
can supply.
They could reduce the starting load by making sure the motor always
stopped at the top of the slope and have it "level", this also reduces
the time between pressing the trigger and the hammer dropping. The motor
winds it back up post stapling.

Motor resistance limits it to about 30A or so. They are not great motors
in these things.

Replacing dead NiCads tools with mains power supply?
 

In article , Martin Bonner wrote:
On Jun 9, 12:47*am, "george [dicegeorge]"
wrote:
oh yes, now I look again it is 1.3Ah
which means 1.3 amps at 18volts for an hour

Or 13A at 18V for 1/10th an hour == 6 minutes
Or 26A at 18V for 3 minutes

Roughly, it isn't linear. It'll be 1.3Ah at some rated current, and
if you draw twice that current, you'll get a little bit less than half
the time. If you draw ten times the current, you'll get noticably less
than ten times the time.