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20 volt portable (battery powered) power packs?

i need a 17-25 volt battery powered rechargeable power pack preferably $50. if you cant find one for under $50 i would still be glad to know where to find one. it needs to have at least one :o shaped socket and can plug into a wall socket (:o shaped thing) and i need it to run for about 5 hours per charge. im trying to run a raspberry pi, screen and usb hub off this if that helps.

Not to rain on your parade, but I seriously doubt that this exists in that price range. Looking at some portable tool Li-ion packs should tell you that. Most are rated right around 3.0 Ah and without knowing the drain on the stuff you're trying to run it would be a guess, but I'm thinking 5 hours is about 2 1/2 to 4 hours longer than it will run here. You won't get quality packs for that price range either from what I'm seeing. Then there is the charging circuitry to consider. Just at an offhanded guess, you'll need more like 5.0 Ah and maybe higher to run this that long and the 3.0 Ah packs are barely in your price range. You may be able to get a better and closer estimate using the design resources at the link below. I wish you luck and hope you're right.

http://www.powerstream.com/tech.html

Good luck, good hunting and stay safe!

Find Power Packs On eBay Below:

Chevrolet Silver Cloud Collectors Train Set 36x45 Oval of Track with Power Pack
Chevrolet Silver Cloud Collectors Train Set 36x45 Oval of Track with Power Pack
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MRC Railpower 1300 HO N Scale Model Train Transformer Powerpack Tested In Box
MRC Railpower 1300 HO N Scale Model Train Transformer Powerpack Tested In Box
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Vintage Tyco HO Train Power Pack 899BP with Original Hookup Wire
Vintage Tyco HO Train Power Pack 899BP with Original Hookup Wire
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Vintage KF HO Model Train Power Pack Transformer Model UL 75 NOS 1960s 175 Amp
Vintage KF HO Model Train Power Pack Transformer Model UL 75 NOS 1960s 175 Amp
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Vintage AHM HO Model Railroad Hobby Transformer Power Pack Model 70269
Vintage AHM HO Model Railroad Hobby Transformer Power Pack Model 70269
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Vintage MRC Ampack HO Model Train Power Pack Transformer Model 2 1960s
Vintage MRC Ampack HO Model Train Power Pack Transformer Model 2 1960s
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HO scale Rivarossi DC 3 pack locomotives EMD E 8s powered A non pow A
HO scale Rivarossi DC 3 pack locomotives EMD E 8s powered A non pow A
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Vintage Gilbert And Revell 1956 HO Train Cars And Eldon Power Pack Untested
Vintage Gilbert And Revell 1956 HO Train Cars And Eldon Power Pack Untested
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Kato HO N Power Pack KAT22014
Kato HO N Power Pack KAT22014
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Bachman JOHN BULL HO Scale Electric Train Set w Track  Power Pack
Bachman JOHN BULL HO Scale Electric Train Set w Track Power Pack
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HO Scale Tyco ROCK ISLAND Engine  Caboose Electric Power Pack Plus other cars
HO Scale Tyco ROCK ISLAND Engine Caboose Electric Power Pack Plus other cars
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Thunder LINE Model 70203 Power Pack
Thunder LINE Model 70203 Power Pack
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Thunder LINE Model 70002 Power Pack Unit 2
Thunder LINE Model 70002 Power Pack Unit 2
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Thunder LINE Model 70002 Power Pack Unit 1
Thunder LINE Model 70002 Power Pack Unit 1
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Bachmann Gaines Gravy Train HO Scale Set 5 Cars 1 Engine Tracks
Bachmann Gaines Gravy Train HO Scale Set 5 Cars 1 Engine Tracks
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LIFE LIKE BRAND SANTA FE ENGINE TRACKS 5 OTHER CARS AND POWER PACK
LIFE LIKE BRAND SANTA FE ENGINE TRACKS 5 OTHER CARS AND POWER PACK
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BOXED ATHEARN THE WARBONNET AUTHENTIC HO SCALE TRAIN SET POWER PACK LOCOMOTIVE
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Kato 3 0640 Lets DCC HO Scale Unitrack Power Pack Assortment
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BACHMANN SPECTRUM HO POWER PACK 44 6681 15V DV 18V AC C8LN
BACHMANN SPECTRUM HO POWER PACK 44 6681 15V DV 18V AC C8LN
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Bachmann Ho scale EZ track sections with powerpack
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Estate Sale find Lionel HO Train lot 1976 6 cars power pack tracks
Estate Sale find Lionel HO Train lot 1976 6 cars power pack tracks
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Kato 3 104 HO Scale Unitrack HM1 Basic Oval Set w Power Pack Set
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HO SCALE LOT of track buildings power pack and much more
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2 Packs HO scale Model Power STATION SERVICE CREW 12 total 5709 New On Card
2 Packs HO scale Model Power STATION SERVICE CREW 12 total 5709 New On Card
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2 Packs HO scale Model Power SERVICE STAFF  GOING TO TRAIN 12 total New On Card
2 Packs HO scale Model Power SERVICE STAFF GOING TO TRAIN 12 total New On Card
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2 Packs HO scale Model Power ASSORTED LIVESTOCK 16 total 5726 New On Card
2 Packs HO scale Model Power ASSORTED LIVESTOCK 16 total 5726 New On Card
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HO Scale Accessories Life Like DC Power Pack With Leads Tested
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LIFE LIKE SPIRIT OF 76 HO Scale Train Set Electric Power Pack 08752 Vintage
LIFE LIKE SPIRIT OF 76 HO Scale Train Set Electric Power Pack 08752 Vintage
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BACHMANN HO N MODEL TRAIN TRANSFORMER POWER PACK MODEL 6607 WITH ORIGINAL BOX
BACHMANN HO N MODEL TRAIN TRANSFORMER POWER PACK MODEL 6607 WITH ORIGINAL BOX
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Kato  3104 Unitrack HM1 Basic Oval Set w Power Pack Set HO MIB
Kato 3104 Unitrack HM1 Basic Oval Set w Power Pack Set HO MIB
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Train big lot tracks cars and power packs
Train big lot tracks cars and power packs
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Kato N Scale Unitrack Basic Oval Track Set with Power Pack 20 850 1 NEW
Kato N Scale Unitrack Basic Oval Track Set with Power Pack 20 850 1 NEW
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Vintage AHM Thunder Line Power Pack
Vintage AHM Thunder Line Power Pack
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Bachman HO  N Scale Electric Trains Power Pack Model 6605
Bachman HO N Scale Electric Trains Power Pack Model 6605
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MRC Tech 7 Ampac 760 Power Pack 0001276
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Kato HO 3 0620 Yard Job One Unitrack  Power Pack Assortment
Kato HO 3 0620 Yard Job One Unitrack Power Pack Assortment
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Vintage Strombecker Train Slot Car Power Pack Model 9700
Vintage Strombecker Train Slot Car Power Pack Model 9700
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AHM HO SCALE 70203 THUNDER LINE POWER PACK
AHM HO SCALE 70203 THUNDER LINE POWER PACK
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Vintage HO  N Scale Model Train BACHMANN Power Pack used very little
Vintage HO N Scale Model Train BACHMANN Power Pack used very little
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