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| Portable Headphone Amps Discussion of portable headphone amps. |
12-29-2007, 04:49 PM
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Moderator:
Headphoneus Supremus:
The first to organize an International Head-Fi Meet (2006)
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Join Date: Mar 2002
Location: "I can't hear you...I have my headphones on" Long Island, NY
Posts: 8,748
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Quote:
Originally Posted by Jaw007
I was afraid to listen to a new amp that I got over a week ago,and still have not listened to it yet!
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I believe that you should listen to any component that people claim improve over time with burn-in. This way, you and your new toy get to mature together and you can experience the ups and downs of the unit will it it's ready for the Cotillion.
Sort of like getting a dog that's not paper trained and still needs all the shots. You will have a more intimate history with your friend when you go through the maturing curve with it. It's like getting a new amp every three days. 
__________________
**********************************
-My house was built for lovin'...not a theater of war.
-Realize it's harder to find your own voice, then to follow one, already in the air.
~~~><///'>~~~><///'>~~~><///'> ~~~
Music is my recreational drug...I need a dose, everyday!
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12-29-2007, 04:53 PM
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Headphoneus Supremus
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Join Date: Nov 2004
Location: Santa Rosa, CA --image Katmandu, Nepal Summer 2006 *We are but a cosmic blink or was that wink?*
Posts: 7,601
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Quote:
Originally Posted by elnero
So what do you attribute this settling period you experienced to, the amp having not been used for a period of time or something else?
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I would guess not being on for a while. It only took a couple of hours and the sound became focussed and has stayed that way.
I agree on leaving the unit on. I always leave my solid-state devices on.
__________________
John aka Jam and Jama
Photo gallery at: www.pbase.com/jamato8 Recent publication: Ethnobotany Research & Applications, Vol 7 (2009) Kam Guilzhouh nyim Guangxxih di Benxtux Wenchual nyim Zihyuanc dih Gonxliix: Kam Local Indigenous Knowledge and Sustainable Resource Management in Guizhou and Guangxi Provinces, China http://www.ethnobotanyjournal.org/
The one constant in life is change, so will that change?
Feel with your own heart, see with your own eyes and hear with your own ears.
JH13's > Why stay home when you can go to the concert?
Listening with: JH13 Pro, Grado HF2 #469
Digital conversion: the all new MB-1 optical dual Wolfson portable dac
Amps I am currently listening with: RSA P-51 Mustang, SR 71A, iBasso D10, Lisa III, OEM BLack Gate, Non Black Gate, iBasso P3+, iBasso T3 (new version), RSA Shadow, iBasso D4
Favorite monitors: JH13 Pro, Grado HF2, Ultrasone Ed. 9 #1010, ATH-ESW10JPN
Portable monitor ratings: 1. JH 13 Pro 2. ESW10 JPN 3. PortaPros, KSC35 (modified-a great value) *4. UM2
Source: iRiver H130,140, D303 optical out, D-EJ955, D-EJ1000, D-EJ2000, 25s, 25, D-303, D-777 and others (optical out if available)
Digital Conversion: MB-1 optical Dac, Altoid tin Monica Dac I, Altoid tin Monica II Asynchronous Reclocking Dac, iBasso D10
Headphone Amplifiers:RSA: Shadow, Predator, P-51 Mustang, SR71A, Xin: IV Micro, IV Mini, Reference, SM3B, SuperMacro V LE, SM3 V6 (IV all switches), XRTA X-1, C&C Box, iBasso: P1, P2, P3, P3+, T1, T2, T3, T4 D1, D2, D3, D4, D10 Woo 3 Modified-Siemens 6922 driver, 7236 power tube, Woo 6 with the original Pseudo dual PS -
Ear Monitors: JH13 Pro, Ultra Ed. 9, Grado HF-2/F1 #469, HD650, ATH-ESW10 JPN, Ultrasone 750, HFI780, PortaPro modified, KSC35, Equation RP-21, Westone UM2
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12-29-2007, 04:54 PM
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Headphoneus Supremus
Moderator
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Join Date: May 2006
Location: S Florida
Posts: 4,860
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Quote:
Originally Posted by Jaw007
I was afraid to listen to a new amp that I got over a week ago,and still have not listened to it yet!
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That's craaazy talk. Break it out, throw on some music, and enjoy it.
Quote:
Originally Posted by immtbiker
Sort of like getting a dog that's not paper trained and still needs all the shots.
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This is the analogy you came up with? 
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12-29-2007, 05:11 PM
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Moderator:
Headphoneus Supremus:
The first to organize an International Head-Fi Meet (2006)
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Join Date: Mar 2002
Location: "I can't hear you...I have my headphones on" Long Island, NY
Posts: 8,748
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Quote:
Originally Posted by boomana
This is the analogy you came up with? |
It was one that hits close to home with me. I could have used the "virgin and patience" theory, but I thought the cute puppy analogy would be better suited. 
__________________
**********************************
-My house was built for lovin'...not a theater of war.
-Realize it's harder to find your own voice, then to follow one, already in the air.
~~~><///'>~~~><///'>~~~><///'> ~~~
Music is my recreational drug...I need a dose, everyday!
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12-29-2007, 05:19 PM
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Headphoneus Supremus
Moderator
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Join Date: May 2006
Location: S Florida
Posts: 4,860
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Quote:
Originally Posted by immtbiker
It was one that hits close to home with me. I could have used the "virgin and patience" theory, but I thought the cute puppy analogy would be better suited. |
okie dokie then.
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12-29-2007, 05:23 PM
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Headphoneus Supremus:
Moderator
Can Jam '08 Lead Organizer
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Join Date: Dec 2003
Location: South Florida
Posts: 9,995
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Quote:
Originally Posted by Jaw007
I was afraid to listen to a new amp that I got over a week ago,and still have not listened to it yet!
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Immediately go get the amp and start using it. This stuff about letting it sit around to burn in is nuts. Enjoy the amp. If it sounds good now, it will continue to sound good.
__________________
Mike
CanJam '09
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12-29-2007, 08:40 PM
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Head-Fi'er
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Join Date: Jul 2006
Location: UK, London
Posts: 34
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Is their any indication that the predator is being charged?, or will the switch only glow red when it is fully charged. Just wondering since mines been charging for about 4 hours now. And i want to get using it.
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12-29-2007, 09:08 PM
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Headphoneus Supremus
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Join Date: Nov 2004
Location: Santa Rosa, CA --image Katmandu, Nepal Summer 2006 *We are but a cosmic blink or was that wink?*
Posts: 7,601
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Quote:
Originally Posted by addz
Is their any indication that the predator is being charged?, or will the switch only glow red when it is fully charged. Just wondering since mines been charging for about 4 hours now. And i want to get using it.
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You can use it while being charged with no problem and it most likely came with some charge. The on/off switch is red when on and does not change color. It lightly blinks when charging but it is not always easy to see the lightly blinking light. I would imagine it didn't take long to top off the battery so start using it! :^)
__________________
John aka Jam and Jama
Photo gallery at: www.pbase.com/jamato8 Recent publication: Ethnobotany Research & Applications, Vol 7 (2009) Kam Guilzhouh nyim Guangxxih di Benxtux Wenchual nyim Zihyuanc dih Gonxliix: Kam Local Indigenous Knowledge and Sustainable Resource Management in Guizhou and Guangxi Provinces, China http://www.ethnobotanyjournal.org/
The one constant in life is change, so will that change?
Feel with your own heart, see with your own eyes and hear with your own ears.
JH13's > Why stay home when you can go to the concert?
Listening with: JH13 Pro, Grado HF2 #469
Digital conversion: the all new MB-1 optical dual Wolfson portable dac
Amps I am currently listening with: RSA P-51 Mustang, SR 71A, iBasso D10, Lisa III, OEM BLack Gate, Non Black Gate, iBasso P3+, iBasso T3 (new version), RSA Shadow, iBasso D4
Favorite monitors: JH13 Pro, Grado HF2, Ultrasone Ed. 9 #1010, ATH-ESW10JPN
Portable monitor ratings: 1. JH 13 Pro 2. ESW10 JPN 3. PortaPros, KSC35 (modified-a great value) *4. UM2
Source: iRiver H130,140, D303 optical out, D-EJ955, D-EJ1000, D-EJ2000, 25s, 25, D-303, D-777 and others (optical out if available)
Digital Conversion: MB-1 optical Dac, Altoid tin Monica Dac I, Altoid tin Monica II Asynchronous Reclocking Dac, iBasso D10
Headphone Amplifiers:RSA: Shadow, Predator, P-51 Mustang, SR71A, Xin: IV Micro, IV Mini, Reference, SM3B, SuperMacro V LE, SM3 V6 (IV all switches), XRTA X-1, C&C Box, iBasso: P1, P2, P3, P3+, T1, T2, T3, T4 D1, D2, D3, D4, D10 Woo 3 Modified-Siemens 6922 driver, 7236 power tube, Woo 6 with the original Pseudo dual PS -
Ear Monitors: JH13 Pro, Ultra Ed. 9, Grado HF-2/F1 #469, HD650, ATH-ESW10 JPN, Ultrasone 750, HFI780, PortaPro modified, KSC35, Equation RP-21, Westone UM2
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12-29-2007, 09:25 PM
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500+ Head-Fi'er
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Join Date: May 2007
Location: Vancouver, Canada
Posts: 571
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Mine is sounding better daily. I'm not worried about it but am enjoying the amp now. What has me a little thrown is Jamato stating that he got his predator with 300 hours burn in on it to begin with and claims to still be hearing differences both good or bad after 600 hours. I am a firm believer any component will change over a 300 hour burn in gradualy over the next 300 first or so hours and then perhaps subtle changes there after for up to 500 or 600 hours but the fact that Jamato claims all these "mood swings' of the amp between 300 and 600 hours are so drastic has me a little perplexed. I suppose my Cardas Golden Cross cables had this kind of burn in time so perhaps it's not all that unusual.
For the record, for those who have not heard the Predator, it is a very nice sounding amp regardles it's size. I have maybe 2 days play on mine. I required to charge it one since the day befor Christmas. I have only the RSA HR-2 to compare it to so it's definately holding it's own. Using the usb dac is an obvious improvement over my creative extreme music sound blaster card line out to the amp only which sounds good itself.
__________________
FEEDBACK
Headphones:
Denon DM5000 (Markl modded with beauty wood cups),SR-325woodies,325iwoodies SR-225 woodies,' HD-25 (Equinox)
Headphone Amps: RSA Hr-2, RSA Predator, Little Dot MkI,Little Dot MkV
Sources: Talk Thunder 3.1b, Magnum Dynalab Etude tuner to be MD-106T, Tivoli CDP,Zune30GB, Ipod Classic X2
Preamp : Pass X1
Amp : Pass X250.5 in case I'm able to run my Hales T5's(small house)
Last edited by mitchb; 12-29-2007 at 09:29 PM.
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12-29-2007, 09:27 PM
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Head-Fi'er
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Join Date: Jul 2006
Location: UK, London
Posts: 34
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thanks jamato8, i only ask if their is indication if the predator is charging because when mine is charging (plugged into the mains) i do not see any blinking whatsoever, maybe its not even charging.
Last edited by addz; 12-29-2007 at 10:00 PM.
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12-29-2007, 09:57 PM
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Headphoneus Supremus
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Join Date: Nov 2004
Location: Santa Rosa, CA --image Katmandu, Nepal Summer 2006 *We are but a cosmic blink or was that wink?*
Posts: 7,601
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Quote:
Originally Posted by mitchb
Mine is sounding better daily. I'm not worried about it but am enjoying the amp now. What has me a little thrown is Jamato stating that he got his predator with 300 hours burn in on it to begin with and claims to still be hearing differences both good or bad after 600 hours. I am a firm believer any component will change over a 300 hour burn in gradualy over the next 300 first or so hours and then perhaps subtle changes there after for up to 500 or 600 hours but the fact that Jamato claims all these "mood swings' of the amp between 300 and 600 hours are so drastic has me a little perplexed. I suppose my Cardas Golden Cross cables had this kind of burn in time so perhaps it's not all that unusual.
For the record, for those who have not heard the Predator, it is a very nice sounding amp regardles it's size. I have maybe 2 days play on mine. I required to charge it one since the day befor Christmas. I have only the RSA HR-2 to compare it to so it's definately holding it's own. Using the usb dac is an obvious improvement over my creative extreme music sound blaster card line out to the amp only which sounds good itself.
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I was surprised myself. I used other references when I was in doubt, to rule out my ears/mind hearing/perceiving something different. I would not say the changes were "drastic" but to me they were noticable. I don't have quite 600 hours on the unit yet (approaching 590) but it seems to have evened out.
__________________
John aka Jam and Jama
Photo gallery at: www.pbase.com/jamato8 Recent publication: Ethnobotany Research & Applications, Vol 7 (2009) Kam Guilzhouh nyim Guangxxih di Benxtux Wenchual nyim Zihyuanc dih Gonxliix: Kam Local Indigenous Knowledge and Sustainable Resource Management in Guizhou and Guangxi Provinces, China http://www.ethnobotanyjournal.org/
The one constant in life is change, so will that change?
Feel with your own heart, see with your own eyes and hear with your own ears.
JH13's > Why stay home when you can go to the concert?
Listening with: JH13 Pro, Grado HF2 #469
Digital conversion: the all new MB-1 optical dual Wolfson portable dac
Amps I am currently listening with: RSA P-51 Mustang, SR 71A, iBasso D10, Lisa III, OEM BLack Gate, Non Black Gate, iBasso P3+, iBasso T3 (new version), RSA Shadow, iBasso D4
Favorite monitors: JH13 Pro, Grado HF2, Ultrasone Ed. 9 #1010, ATH-ESW10JPN
Portable monitor ratings: 1. JH 13 Pro 2. ESW10 JPN 3. PortaPros, KSC35 (modified-a great value) *4. UM2
Source: iRiver H130,140, D303 optical out, D-EJ955, D-EJ1000, D-EJ2000, 25s, 25, D-303, D-777 and others (optical out if available)
Digital Conversion: MB-1 optical Dac, Altoid tin Monica Dac I, Altoid tin Monica II Asynchronous Reclocking Dac, iBasso D10
Headphone Amplifiers:RSA: Shadow, Predator, P-51 Mustang, SR71A, Xin: IV Micro, IV Mini, Reference, SM3B, SuperMacro V LE, SM3 V6 (IV all switches), XRTA X-1, C&C Box, iBasso: P1, P2, P3, P3+, T1, T2, T3, T4 D1, D2, D3, D4, D10 Woo 3 Modified-Siemens 6922 driver, 7236 power tube, Woo 6 with the original Pseudo dual PS -
Ear Monitors: JH13 Pro, Ultra Ed. 9, Grado HF-2/F1 #469, HD650, ATH-ESW10 JPN, Ultrasone 750, HFI780, PortaPro modified, KSC35, Equation RP-21, Westone UM2
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12-30-2007, 12:24 AM
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500+ Head-Fi'er
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Join Date: Nov 2004
Location: Montreal, Melbourne, Jakarta Constantly moving!
Posts: 860
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Ok I'm running my predator of iMOD VCAP with Apuresound ER-4P and UE11. They sound outstanding. The midrange is just intoxicating. I don't like the DAC just yet though. too dry sounding and thin to my ears.
__________________
Portable1: iMod 80GB 5.5G -> ALO Ag/Au -> VCAP -> CablePro Panorama -> Predator -> UE-11 Pro/ ER-4P Apuresound
Portable2: iMod 80GB 5.5G -> ALO Ag/Au -> VCAP -> AE-2 -> Ultrasone Edition 9(AWESOME)/ UE-11 Pro
Portable3: iMod 80GB 5.5G -> ALO Ag/Au -> VCAP -> SR-71A -> Ultrasone Edition 9
Home1:iMod 80GB 5.5G -> ALO SuperCotton ->VCAP -> CablePro Reverie V.2 -> EarmaxPro(CV6091 Triple Mica Square getter GEC 1963 & 7308 Amperex USA white label PQ military type, labelled Amperex, gold pins 1961, Siemens CCa 1963, Telefunken CCa)
-> HD650 Equinox LE(For Classical/Opera, Complex Energetic Instrumental)
Home2:Freeway 2 -> Grace M902(Marigo Power Cable) -> CablePro Reverie 2 -> LISA Expedition 19/100
-> Grado GS1000 Black Dragon(Jazz, and Extra JAZZ)
-> Denon AH-D7000
-> HD650 Equinox LE(For Classical/Opera, Complex Energetic Instrumental)
1. UE-11Pro still my top choice.
2. UE-10Pro
3. ER-4P Apuresound
Own iPOD Classic 80GB and there is no way the SQ to be anywhere close to iMOD 5.5G with VCap. The Vcap miles away in terms of: Soundstage, Decay, Depth, Midrange, MUSICALITY! with ER-4P(Apuresound)
Last edited by jlingo; 12-30-2007 at 12:28 AM.
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12-30-2007, 07:04 AM
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Head-Fi'er
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Join Date: Mar 2007
Location: Hong Kong
Posts: 69
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Quote:
Originally Posted by addz
thanks jamato8, i only ask if their is indication if the predator is charging because when mine is charging (plugged into the mains) i do not see any blinking whatsoever, maybe its not even charging.
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mine also, no indication when charging.
i just plug it to the charger for 8-9 hours, then stop charging it and enjoy~
The predator works great with my ES3, better than tomahawk in many ways(Although tomahawk is cool). 
__________________
IEM: Westone ES3, Klipsch Image X10, UE Super Fi 5 PRO
DAP: IPod Classic 120G, IRiver H360 BGx4 MOD
Discman: Sony NE20LS
CDPlayer: Cambridge Audio Azur 840C
Soundcard: Creative E-MU 1212M PCI, X-FI Platinum
Headphone: Sennheiser HD 800 (Original & APureSound V3 recabled), Sennheiser HD 650 (Revelation Audio Labs Paradise Cryo-Silver™ Reference)
Amplifier: Phil Audio PA-HA-6000MK3SE, RSA the Predator
etc
Waiting: Xin Reference (Oct 8, 2007 Ordered)
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12-30-2007, 02:33 PM
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Head-Fi'er
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Join Date: Jul 2006
Location: UK, London
Posts: 34
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^ may as well. I used the predator first time until i could clearly hear that the battery needed to be charged, then left it charging for about 3-4 hours and now seems as if its fully charged. Next time i will prob only charge up to 2 hours as recommended.
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12-30-2007, 04:55 PM
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100+ Head-Fi'er
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Join Date: Apr 2004
Location: Chicago, IL USA
Posts: 419
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Quote:
Originally Posted by addz
^ may as well. I used the predator first time until i could clearly hear that the battery needed to be charged, then left it charging for about 3-4 hours and now seems as if its fully charged. Next time i will prob only charge up to 2 hours as recommended.
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Leaving it plugged in for more than 2 hours will not be a problem as the battery is protected from overcharging.
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