Feb 20, 2012, 09:43 AM Registered User Puerto Rico, San Juan Joined Feb 2012 25 Posts Laptop Power Supply to Power PL6 Hi all, I've read between the threads that a laptop power supply can be used to power a PL6. I don't need huge amounts of power since I'll only be charging a 1S and a 3S Lipo. I would like to use it mostly for home use or emergencies since I have access to a buddys 24V at the field. What are the minimum requirements a laptop power supply should have to power this PL6? I have an old spare one rated at: INPUT: 100-240 V OUTPUT: 19V - 6.3A - Would this PS work? I am comfortable soldering so I can mod the connector. Thanks in advanced.
Feb 20, 2012, 10:56 AM
Southern Pride
Haralson County GA. USA
Joined Oct 2004
34,276 Posts
Quote:
 OUTPUT: 19V - 6.3A
19 X 6.3 = 119.7 watts which should give you a mininum of 100 watts output from the charger .

A 3S LiPoly (12.6 charged voltage) requires 12.6 X 1A = 12.6 watts per 1,000 mAh for a 1C charge.

The aprox. 100 watts available wold charge a 3S at up to aprox. 8Amps.

100 / 12.6 = 7.9 Amps.

There is an excellent charging capability spread sheet posted. on the Revolectrix site.

http://www.revolectrix.com/Calculators_main.htm

Charles
Last edited by everydayflyer; Feb 20, 2012 at 11:06 AM.
Feb 20, 2012, 12:24 PM
President, FMA, Inc.
Joined Mar 2008
1,050 Posts
Quote:
 Originally Posted by everydayflyer 19 X 6.3 = 119.7 watts which should give you a mininum of 100 watts output from the charger . A 3S LiPoly (12.6 charged voltage) requires 12.6 X 1A = 12.6 watts per 1,000 mAh for a 1C charge. The aprox. 100 watts available wold charge a 3S at up to aprox. 8Amps. 100 / 12.6 = 7.9 Amps. There is an excellent charging capability spread sheet posted. on the Revolectrix site. http://www.revolectrix.com/Calculators_main.htm Tim or someone how about updating the link in the first post of PowerLab8 introduction thread? Charles

Hi Charles:

Thanks for the suggestion! I'll add it to my to-do list.

Tim Marks