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Thread ID: 130231	2013-04-02 07:17:00	HP Power Supply for Toshiba OK?	Winston001 (3612)	Press F1

Post ID	Timestamp	Content	User
1335090	2013-04-02 07:17:00	The power supply transformer for my daughters Toshiba laptop has failed. By chance I had a similar power supply unit for an old HP and to our suprise, the plug fitted and the Toshie booted up. Now I'm looking at a sleepless night worried her machine will get fried. The Toshie wants 100W in, the HP wants 90W. Both output 19V. But the Toshie puts out 3ish mA and the HP 4ish mA. Is this a problem? Yours in Resistance Winston :D	Winston001 (3612)
1335091	2013-04-02 07:26:00	Don't quote me on this, but the laptop should only draw what's necessary - a higher current/wattage won't matter.	pcuser42 (130)
1335092	2013-04-02 07:54:00	Yes it should be fine. As with your mains power a heater draws 1000 watts from the power point but if you plug a 40 watt lamp into the same outlet it works perfectly. As pcuser said above the laptop will only draw what is required. (Sorry I quoted him inspite of his request not to)	CliveM (6007)
1335093	2013-04-02 08:03:00	Trifle confusing. I assume you mean that the Toshiba supply is rated at 100W and the HP supply is rated at 90W. And what do you mean by the "puts out 3/4ish mA"? In theory, the Toshiba unit can supply around 5 Amps and the HP one, 4.75 Amps. The voltage is the same, the polarity of the plug is (luckily!) the same, and the wattage rating is similar so, yes, the HP supply will (theoretically!) be fine.	linw (53)
1335094	2013-04-02 09:59:00	3 mA or 3 milliamps would barely light a single LED, much less run an entire laptop!	Agent_24 (57)
1335095	2013-04-02 10:01:00	I also don't really understand what you have written but as long as the replacement power adapter is of the same output voltage, in your case 19V, and the amps are the same, or more than the original power adapter, then it is fine.	CYaBro (73)
1335096	2013-04-02 10:30:00	I assume the old and new adaptors can supply 3 and 4 Amps respectively, and he mistakenly added the 'm' ...	Agent_24 (57)
1335097	2013-04-03 07:26:00	My abject apologies guys, I was relying on my memory when posting. However I was mostly correct: The laptop is a Toshiba Satellite Pro L650. HP - output 19V - 4740mA Toshiba - output 19V - 3.95A (which I guess is 3950mA)? As Linw says, luckily the polarity is the same - a small but explosive point which hadn't occurred to me. :waughh: Thanks for your help everyone, the machine is charging and everything appears to be fine.	Winston001 (3612)
1335098	2013-04-03 07:48:00	Toshiba - output 19V - 3.95A (which I guess is 3950mA)? Yep, that's right So using the HP one is OK because it can supply more current than the old one did. Around the other way however would not be advisable as you'd be trying to draw more than it could supply.	Agent_24 (57)
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