Prolong and Extend Battery Life of Windows Mobile 5 Devices by Enabling Power Management
For a portable mobile device, the longevity of the battery life and hours lasted by the battery before its power runs out. When using portable handheld device or mobile device such as PDA, portable media player, Pocket PC, Palm, Windows Mobile, MP3 Player, audio player, handheld gaming console, Smartphone, mobile phone, portable computer and others, it’s annoying if the battery is draining too fast, or the handheld device suddenly blackout as battery flat, or able to use your favorite gadget for just a few hours, not even able to standby for a complete day. Electronic gadget manufacturers have responded with higher capacity battery with advanced technology, such as usage of lithium ion battery.
If you’re using Windows Mobile 5 (WM5) handheld devices or PDAs, such as O2 Atom/Atom Pure/Exec/Stealth, Dopod 818Pro/838/838 Pro/900, T-Mobile Dash, Cingular 3125/2125/8125, Motorola Q/i930, T-Mobile SDA/MDA, SPV C600, Dell Axim X51v, HP iPAQ hw6920/hw6925, Palm Treo 750v/700wx/700w smartphone, Spring PPC 6700, iMate Jasjar, Pharos Traveler GPS 525 and etc, there is a simple registry trick and hack that will enable power management on several communications protocols to save and conserve the battery life, and thus extend and prolong the battery of the Windows Mobile devices.
To edit the registry in the Windows Mobile-based Pocket PCs, you will to download and install the freeware PHM Registry Editor or Resco Registry Editor comes with Resco Explorer.
Once install the registry editor, launch the registry editor and navigate to the following registry branch, and edit or modify the respective registry value (all value in decimal):
[HKEY_LOCAL_MACHINE\Comm\AsyncMac1\Parms]
Default value type and value are
“DisablePowerManagement”=dword:1
Change to
“DisablePowerManagement”=dword:0
[HKEY_LOCAL_MACHINE\Comm\Irsir1\Parms]
Default value type and value are
“DisablePowerManagement”=dword:1
Change to
“DisablePowerManagement”=dword:0
[HKEY_LOCAL_MACHINE\Comm\PPTP1\Parms]
Default value type and value are
“DisablePowerManagement”=dword:1
Change to
“DisablePowerManagement”=dword:0
[HKEY_LOCAL_MACHINE\Comm\L2TP1\Parms]
Default value type and value are
“DisablePowerManagement”=dword:1
Change to
“DisablePowerManagement”=dword:0
After editing and changing the registry value, exit the registry editor. Wait for about 20 seconds and then switch off the PPC, and then switch on again. This step is important so that any registry modification will make permanent into the registry. Wait for a while again, and then soft reset (reboot) the PDA. Check if the registry settings have been changed correctly, and start using your Windows Mobile portable device to feel the significant power save which enhance the battery life longer.
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Entries (RSS)
September 23rd, 2008 02:51
don,t forget to disable async or set to manual sync… will wake unit too often for nothing.
August 7th, 2008 23:20
I have a xv6700 (verizon), and the trick surely has done wonders .! The battery DID life got prolonged by 3-4 hours ! (Mine is one year and some 2-3 months old) What i’ve seen in 6700 is the battery life gradually starts decreasing as time passes.
For whon the tricks didn’t worked :use the phone with ALL RADIOS OFF (Bluetooth, WiFi and Infrared ) Set the beam off and check..
December 6th, 2007 11:02
I have a t mobile dash and hacking the hell out of it….and I have to say that the battery life of this thing is very very good. I’m satisfied with it 100% The only time that It will drain is when I’m using the internet explorer or the PDA features for a prolonged while. I work 8 hours a day and do not run out of battery. Just wanted to share that with the rest of the world. Unless the dash 2 comes out for t mobile or something better than the dash…i’m not going to own another phone.
November 29th, 2007 10:36
Tried this on my PPC-6700 and the battery life REMAINS HORRIBLE. I will never again have a WM phone, 80% due to terrible battery life.
To the author of this article: You sound like you understand in theory what is supposed to happen, but you can see from real life people that we are all disappointed with our battery life. Did you TEST your results? On what device? What were the results?
October 23rd, 2007 18:36
i ‘m using O2 xda stealth and now i am having a serious problem about its battery time
i tried ur tutor but the problem is that i don’t find the registry brand [HKEY_LOCAL_MACHINE\Comm\Irsir1\Parms]
but i tried to edit the 3 others key but no effect after
October 13th, 2007 18:39
I thnk it worked, but you ust have bluetooth off and wireless off unless being used, BT and WIFI draw so much power as to make any other power savings insignificant
August 23rd, 2007 05:46
[...] start using your Windows Mobile portable device to feel the significant power save which enhance the battery life longer. Steve [...]
July 4th, 2007 06:03
nothing changed with the k-jam I think it’s useless.
July 4th, 2007 05:58
I try it with my jasjar – failed nothing happened.
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
April 27th, 2007 01:27
Tried with I-Mate JAMin – Failed.
Battery still drains like crazy. No affect whatsoever!
November 16th, 2006 23:10
Well I tried it on an Orange SPV M3100 (HTC TyTN) and it made absoloutely no difference – the battery life is still dismal!