Which AC Adapter?

[Parabola]

I have an old Clarke Jumpstart pack. It’s had two AC Adapters go brittle and fall apart. Don’t really want to buy a third from Machine Mart.

Could anyone point me in the direction of a decent replacement. My Google skills have failed me today.

https://www.machinemart.co.uk/p/jump-start-910-cw-...

[gizlaroc]

This is quite a good one.....

https://www.amazon.co.uk/Invero®-Universal-Ad...

[gizlaroc]

Has the top half of the case just come apart?

If so, just tape it up well or superglue it back together, or better still, both.

[tr7v8]

gizlaroc said:

This is quite a good one.....

https://www.amazon.co.uk/Invero®-Universal-Ad...

Won't work as voltage isn't high enough. Just had the same issue for mine, bought one and it didn't work.
Have an ebay one on order.

[GreenV8S]

What's the actual output voltage of the original adapter i.e. is it a nominal 12V (and may be higher off load) or a regulated 12V?

[Parabola]

gizlaroc said:

Has the top half of the case just come apart?

If so, just tape it up well or superglue it back together, or better still, both.

It was making a loud buzzing noise before it came apart and something fell out, otherwise I’d give that a go.

[Parabola]

GreenV8S said:

What's the actual output voltage of the original adapter i.e. is it a nominal 12V (and may be higher off load) or a regulated 12V?

Sorry, I’m not sure. Does the text on the photo above of it the adapter say? I don’t really understand electrickery.

[Mikey G]

I have a boost pack, lost the proper charger years ago, I used to use a ctek charger direct to the battery clamps, worked well. then I found an automatic SLA charger I had for something else, was used for charging the 7ah batteries normally found in emergency lighting and battery UPS systems. I just clip the ends of the wires onto the boost cables and it works a treat, charges much better than the old plug in one.

[gizlaroc]

Parabola said:

It was making a loud buzzing noise before it came apart and something fell out, otherwise I’d give that a go.

The buzzing is probably the case coming apart, PSUs do vibrate, normally not enough to hear it, but if the case is coming loose it will resonate.

[Parabola]

Mikey G said:

I have a boost pack, lost the proper charger years ago, I used to use a ctek charger direct to the battery clamps, worked well. then I found an automatic SLA charger I had for something else, was used for charging the 7ah batteries normally found in emergency lighting and battery UPS systems. I just clip the ends of the wires onto the boost cables and it works a treat, charges much better than the old plug in one.

Just tried attaching it to my CTEK charger, but it didn’t seem to recognise it. I just connected the red clip to red clip and black to black.




Battery pack has this info on the back if that’s any help. Thanks.

[finlo]

Was your knob turned on?

[Mikey G]

Parabola said:

Just tried attaching it to my CTEK charger, but it didn’t seem to recognise it. I just connected the red clip to red clip and black to black.




Battery pack has this info on the back if that’s any help. Thanks.

Thats exactly what I did, but it may depend on what model of ctek as mine needed to see some voltage before charging and if its dead flat it may not recognise it. I also have a cigarette socket lead to charge mine while driving but never use it.
If its very flat battery may be damaged but may be worth connecting it to a car and starting it as if you were jump starting it and allow it to charge that way for a few minutes just to get a little power into it.