Just Bought Maplins XM19V Power Supply have I dropped a clanger!

[lifeonmars]

Hello Everyone just went out and bought the Maplins XM19V power supply with an output of 13.8volts and 7amps max,but on getting it home and reading the instructions it warns not to use to charge lead acid batteries yes ok understand, that then it says dont use to power light bulbs or wait for it any items containing electric motors!!

Can anyone explain this, i suppose I am going to have to take it back anyone use this power supply on their Heq5 just a bit concerned that A.I dont blow the power supply up and B my Heq5!Thanks for help in anticipation.

[K3ny0n]

I bought the 10A version to power my EQ5 and have had no problems.

Rob

[lifeonmars]

hi Rob thanks for that is it the same model and how long have you been using it thanks,must be some reason why its in the instructions,anyone else any ideas

[themos]

I've had the XM21X with no problems.

[lifeonmars]

Thanks just had a look at the XM21X and it looks pretty similiar Hmmmmm the mystery gets deeper,anyone with any electronics knowledge that would cast some light on this?

[Photosbykev]

They are transformer based power supplies so should be very quiet, noise wise. It's possible that they don't like induced back emf if the motors were to act as a generator ?? but I'm a clanky so just guessing. I do know they are fine to power mounts and accessories, I've used the 10A version for several years now:)

[lifeonmars]

Thanks for that kev, thats an interesting thought, the motors acting like generators.I think maybe a lot of time manufacturers just like to cover themselves as much as they can but would be interestng to hear if anyone as had any problems .Thank you

[brantuk]

Yup - I have the XM21X too - regulated power supply - not a problem at all. You often find them used as bench supplies in observatories.

[Psychobilly]

They are only rated at the stated current for a max 50% duty they were originally CB/ham radio supplies where normally more time is spent on Rx (low current) than TX (High Current) they are "thermally protected" and will shut down if you try and draw too much current for too long...

If anyone wants a meaty obs supply then have a look at these...

http://www.rapidonli...-supplies-65063

I have a couple of them in work for running burn-in racks and run them maxed out all day...

Peter...

[Herbig]

Loads of people in our group use them.

I've been using the regulated bench top power supply from TLC with no problems with an HEQ5 and an NEQ6.

[Tim]

I also have used the 10A version for years, in fact I have two of them, one for the obsy and one for SP's