On Jun 7, 4:18*am, sisu1a wrote:
Anyone out there have a schematic for a proper hp310 (hp3xx...)
charging cable showing which pins/wires to bridge with which type/
value resistors for operating it using an external 5v battery power
source such as the Socket Mobile Power Pack that they'd be willing to
share?

I think it's Gnd, blank, 3v, 3v, & 5v on pins 1,2,3,4,5 respectively,
with the metal jacket of the male mini USB also plug end also being
grounded... *but want to confirm this and need to know resistor value/
types as well. Tips & tricks welcome...

http://www.socketmobile.com/pdf/acce...er-pack_ds.pdf

I already know where I can buy the complete cable to do this, but I'd
rather just make one... so I don't need any advertisements of where to
go for a plug-n-play version.

TIA,
-Paul

Hi Paul

I have been using a "Just Mobile" PP-08 Mobile Power Pack with my
HP310 and this works a treat for about 5hrs external power + the
Batterie on the 310 for 1,5-2hrs.Recharging via USB of the Powerpack
also about 5hrs. Make sure the 310 is fully charged before you start
using it in the plane as otherwise it will draw a large amount
immediatly of the Power Pack.

Regards
Bruno