APs chewing wall wart power packs

[mitaux8030]

Hi all,
I have a couple of APs - actually two here, one at a remote end. Two of them are chewing those wall wart power plug packs. One is on it's fourth supply, the other its second.
And they're stock standard, except the firmware on one which has been used to reduce the output power.
Is this a common thing?
I've replaced one with a beefy 8 amp / 13.8v supply (OEM was 500mA, 12v unregulated) - lets see it blow that baby!

[bit_pit]

I haven't seen this sort of failure..are they junko 220v ones instead of 240v?
8 amps should do ya, should be able to crank the AP up to 50 or 60 watts with that ...have you actually measured how much the APs draw?

[vk6hgr]

8 amps should do ya, should be able to crank the AP up to 50 or 60 watts with that ...have you actually measured how much the APs draw?

I've been bitten by dying wall warts as well.

My guess is that the AP actually requires 1.2-1.5A at 12V but most over the counter wall warts are only capable of 1A (at best!). The plugpack does its best to supply the current being demanded of it but it'll eventually overheat and the internal thermal fuse will blow.

[BCNZ]

Have you had one of the plug packs open to see what is actually dying in them? It may not be the APs themselves that are chewing the packs, it could just be that the packs are cheap and nasty and aren't lasting.
If you can find out what's roasting itself in the plugpacks then you can narrow down the true cause of them dying.

[hoe]

my bet is they are crappy switch mode power supplies rated at 220v....

try and find 240v transformer supplies, not easy to find these days.

here in kal, the power supply goes up to 260v at times, kills switchmode supplies..

i run all my electronics(tv, dvd etc.) @110v .

[RobClark]

Tell us the brand of APs that are sucking that much power!

Sounds bizzare.

Rob

[Jalorathis]

I had this problem witha Netcomm NB8W. Kept blowing these shitty chinese $2 powerpacks. since then it has been running very happily from a laptop power adapter.

Jalorathis

[urban_s0ulja]

my bet is they are crappy switch mode power supplies rated at 220v....

try and find 240v transformer supplies, not easy to find these days.

here in kal, the power supply goes up to 260v at times, kills switchmode supplies..

i run all my electronics(tv, dvd etc.) @110v .

hey hoe
jsut a quick question mate
dont you need transformers to run 240V appliances at 110V?

[hoe]

yes,

240 to 110v transformers.....

99% of tv'x . dvd players, sat boxes run happily (and cooler) at 110v.

power surges are not a problem anymore.