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  • E-Vehicles General Discussion
    General Discussion about electric vehicles.
    Topics: 2544
    2544 Topics
    30203 Posts
    Last post User avatar Re: Fly-by-wire throttles - t…
    by amberwolf View the latest post
    May 22, 2018 2:42 am
  • Battery Technology
    Batteries, Chargers, and Battery Management Systems.
    Topics: 11179
    11179 Topics
    181232 Posts
    Last post User avatar Re: BOSS LEVEL CUSTOM SPOT WE…
    by rojitor View the latest post
    May 22, 2018 1:48 pm
  • EV Business World
    Topics related to EV businesses
    Topics: 365
    365 Topics
    5009 Posts
    Last post User avatar Re: ES Investors Club
    by LockH View the latest post
    May 18, 2018 8:03 am
  • Motor Technology
    Electric Motors and Controllers
    Topics: 2386
    2386 Topics
    54369 Posts
    Last post Re: KT motor controllers -- F…
    by ASAP Speed View the latest post
    May 22, 2018 10:04 am
  • Active topics
    Replies
    Views
    Last post
  • Thread for new battery breakthrough PR releases
    Last post by TheBeastieUser avatar « May 19, 2018 9:37 pm
    Replies: 1488
    by Doctorbass » Nov 06, 2007 11:32 pm
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    1488 Replies
    138616 Views
    Last post by TheBeastieUser avatar
    May 19, 2018 9:37 pm
  • Lithium Batteries Shipping Rules Discussions
    Last post by jonescgUser avatar « May 18, 2018 2:56 am
    Replies: 275
    by RLT » Sep 13, 2008 1:28 am
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    275 Replies
    40885 Views
    Last post by jonescgUser avatar
    May 18, 2018 2:56 am
  • ES DIY Motor Challenge
    Last post by Chavis « Apr 26, 2018 7:39 pm
    Replies: 318
    by Miles » Nov 28, 2009 5:05 pm
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    318 Replies
    83035 Views
    Last post by Chavis
    Apr 26, 2018 7:39 pm
  • Taking Charge: Let's Develop the Products That We Want!
    Last post by casainho « Mar 31, 2018 3:11 pm
    Replies: 31
    by RevDon » Dec 13, 2007 2:17 pm
    • 1
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    31 Replies
    18744 Views
    Last post by casainho
    Mar 31, 2018 3:11 pm
  • PM Motor theory - formulae etc.
    Last post by amberwolfUser avatar « Feb 18, 2018 3:58 am
    Replies: 71
    by Miles » Feb 19, 2010 9:19 am
    • 1
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    • 3
    71 Replies
    26267 Views
    Last post by amberwolfUser avatar
    Feb 18, 2018 3:58 am
  • Sticky thread index for "Battery Technology"
    Last post by spinningmagnetsUser avatar « Aug 07, 2017 8:33 pm
    Replies: 5
    by spinningmagnets » May 25, 2015 7:59 am
    5 Replies
    11026 Views
    Last post by spinningmagnetsUser avatar
    Aug 07, 2017 8:33 pm
  • RC Lipo series charging tutorial
    Last post by Jon NCal « Mar 07, 2017 2:50 pm
    Replies: 167
    by neptronix » Aug 01, 2013 6:28 am
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    167 Replies
    58206 Views
    Last post by Jon NCal
    Mar 07, 2017 2:50 pm
  • Resources
    Last post by MilesUser avatar « Apr 23, 2016 4:21 am
    Replies: 27
    by Miles » Feb 04, 2010 3:22 pm
    • 1
    • 2
    27 Replies
    17633 Views
    Last post by MilesUser avatar
    Apr 23, 2016 4:21 am
  • Sticky thread index for "Motor Technology"
    Last post by spinningmagnetsUser avatar « May 25, 2015 8:06 am
    Replies: 2
    by spinningmagnets » May 25, 2015 8:06 am
    2 Replies
    5877 Views
    Last post by spinningmagnetsUser avatar
    May 25, 2015 8:06 am
  • How Motors Work - some educational links
    Last post by jpgeyUser avatar « Mar 20, 2015 8:12 am
    Replies: 13
    by fechter » Feb 02, 2007 10:39 am
    13 Replies
    22504 Views
    Last post by jpgeyUser avatar
    Mar 20, 2015 8:12 am
  • Battery F.A.Q - Compilation of good stuff !
    Last post by YpedalUser avatar « Jan 27, 2014 12:07 pm
    Replies: 28
    by Ypedal » Apr 03, 2011 9:07 am
    • 1
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    28 Replies
    62886 Views
    Last post by YpedalUser avatar
    Jan 27, 2014 12:07 pm
  • BOSS LEVEL CUSTOM SPOT WELDER
    Last post by rojitorUser avatar « May 22, 2018 1:48 pm
    Replies: 341
    by rojitor » Jun 23, 2017 6:01 am
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    341 Replies
    20207 Views
    Last post by rojitorUser avatar
    May 22, 2018 1:48 pm
  • bluetooth BMS?
    Last post by made_in_the_alps_legacyUser avatar « May 22, 2018 11:33 am
    Replies: 456
    by aethyr » Jun 02, 2017 12:57 pm
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    456 Replies
    19263 Views
    Last post by made_in_the_alps_legacyUser avatar
    May 22, 2018 11:33 am
  • Water damaged battery
    Last post by Voltron « May 22, 2018 11:22 am
    Replies: 7
    by Calpis » May 22, 2018 8:39 am
    7 Replies
    42 Views
    Last post by Voltron
    May 22, 2018 11:22 am
  • KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
    Last post by ASAP Speed « May 22, 2018 10:04 am
    Replies: 2364
    by casainho » Apr 25, 2017 8:37 pm
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    2364 Replies
    74928 Views
    Last post by ASAP Speed
    May 22, 2018 10:04 am
  • Power PCB for Lebowski Controller to be combined with Bobc's processor board
    Last post by whereswally606 « May 22, 2018 4:14 am
    Replies: 129
    by Lebowski » Nov 27, 2017 5:51 am
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    129 Replies
    6102 Views
    Last post by whereswally606
    May 22, 2018 4:14 am
  • Before paying 2000$ to Osnpower - Can I ask your opinion?
    Last post by Dui, ni shuo de duiUser avatar « May 22, 2018 4:07 am
    Replies: 14
    by thunderstorm80 » May 18, 2018 8:13 am
    14 Replies
    274 Views
    Last post by Dui, ni shuo de duiUser avatar
    May 22, 2018 4:07 am
  • Fly-by-wire throttles - two potentiometers?
    Last post by amberwolfUser avatar « May 22, 2018 2:42 am
    Replies: 4
    by jonescg » May 22, 2018 1:00 am
    4 Replies
    42 Views
    Last post by amberwolfUser avatar
    May 22, 2018 2:42 am
  • 200 volts DC to 12 volts DC converter question?
    Last post by flippyUser avatar « May 22, 2018 2:39 am
    Replies: 4
    by Offroader » May 21, 2018 12:46 pm
    4 Replies
    64 Views
    Last post by flippyUser avatar
    May 22, 2018 2:39 am
  • Odd Ping Battery Pack behaviour
    Last post by adamsavage79User avatar « May 22, 2018 12:32 am
    Replies: 57
    by adamsavage79 » May 12, 2018 11:18 pm
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    57 Replies
    539 Views
    Last post by adamsavage79User avatar
    May 22, 2018 12:32 am
  • Solderless A123 pack
    Last post by MatadorUser avatar « May 21, 2018 11:51 pm
    Replies: 40
    by nuxland » Jan 15, 2017 1:16 pm
    • 1
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    40 Replies
    3625 Views
    Last post by MatadorUser avatar
    May 21, 2018 11:51 pm
  • Best battery for my flying bike?
    Last post by flippyUser avatar « May 21, 2018 11:31 pm
    Replies: 9
    by dozentrio » May 18, 2018 10:56 am
    9 Replies
    154 Views
    Last post by flippyUser avatar
    May 21, 2018 11:31 pm
  • Equipmake's spoke motor
    Last post by LockHUser avatar « May 21, 2018 10:38 pm
    Replies: 2
    by LockH » May 21, 2018 10:17 pm
    2 Replies
    29 Views
    Last post by LockHUser avatar
    May 21, 2018 10:38 pm
  • Fins in hub motor holes for cooling
    Last post by eCueUser avatar « May 21, 2018 10:21 pm
    Replies: 3
    by Hummina Shadeeba » Apr 19, 2016 2:02 am
    3 Replies
    252 Views
    Last post by eCueUser avatar
    May 21, 2018 10:21 pm
  • Davinci Drives Contact Information Needed
    Last post by recumpenceUser avatar « May 21, 2018 8:42 pm
    Replies: 3
    by vipertriplex » May 18, 2018 5:09 am
    3 Replies
    71 Views
    Last post by recumpenceUser avatar
    May 21, 2018 8:42 pm
  • Model 3
    Last post by recumpenceUser avatar « May 21, 2018 8:17 pm
    Replies: 49
    by recumpence » Feb 22, 2018 8:50 pm
    • 1
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    49 Replies
    2329 Views
    Last post by recumpenceUser avatar
    May 21, 2018 8:17 pm
  • Spot Welding Copper Strips to 18650 Battery Cells
    Last post by MatadorUser avatar « May 21, 2018 5:56 pm
    Replies: 167
    by mkp007 » Nov 06, 2016 7:44 pm
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    167 Replies
    17489 Views
    Last post by MatadorUser avatar
    May 21, 2018 5:56 pm
  • "Edge" DD hubmotor, 1500W, 35mm, Al core
    Last post by harmonist « May 21, 2018 3:34 pm
    Replies: 114
    by spinningmagnets » Jul 09, 2016 7:27 am
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    114 Replies
    11691 Views
    Last post by harmonist
    May 21, 2018 3:34 pm
  • Genuine A123 AMP20 Module!
    Last post by ABritInNYUser avatar « May 21, 2018 11:28 am
    Replies: 17
    by okashira » Dec 29, 2015 1:37 pm
    17 Replies
    1539 Views
    Last post by ABritInNYUser avatar
    May 21, 2018 11:28 am
  • 14S battery @57.4 V or 15S @ 60V ?
    Last post by fechterUser avatar « May 21, 2018 8:07 am
    Replies: 17
    by espresso » May 18, 2018 1:41 pm
    17 Replies
    254 Views
    Last post by fechterUser avatar
    May 21, 2018 8:07 am
  • Model 3 battery cell specs
    Last post by flippyUser avatar « May 21, 2018 7:06 am
    Replies: 17
    by okashira » May 13, 2018 4:05 pm
    17 Replies
    450 Views
    Last post by flippyUser avatar
    May 21, 2018 7:06 am
  • building battery for 48v 1000w
    Last post by molybdenumUser avatar « May 20, 2018 5:23 pm
    Replies: 1
    by diyebike » May 20, 2018 3:29 pm
    1 Replies
    53 Views
    Last post by molybdenumUser avatar
    May 20, 2018 5:23 pm
  • ULtra Compact 1800W charger + Eltek programming
    Last post by Powervelocity.com « May 20, 2018 3:09 pm
    Replies: 229
    by Doctorbass » Jul 18, 2015 12:06 am
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    229 Replies
    28289 Views
    Last post by Powervelocity.com
    May 20, 2018 3:09 pm
  • Custom Bosch / Yamaha battery
    Last post by Joachim « May 20, 2018 1:25 pm
    Replies: 22
    by dusan » Jun 12, 2015 10:10 am
    22 Replies
    3934 Views
    Last post by Joachim
    May 20, 2018 1:25 pm
  • Wisper hub motor disassembly
    Last post by markz « May 20, 2018 12:47 pm
    Replies: 7
    by Jimmyf » May 14, 2018 6:12 pm
    7 Replies
    132 Views
    Last post by markz
    May 20, 2018 12:47 pm
  • if you pedal moderatly how many watts do you need for 100miles
    Last post by flippyUser avatar « May 20, 2018 4:33 am
    Replies: 2
    by want to build » May 18, 2018 9:21 pm
    2 Replies
    110 Views
    Last post by flippyUser avatar
    May 20, 2018 4:33 am
  • 18650 battery pack build Kepler style
    Last post by KeplerUser avatar « May 20, 2018 3:31 am
    Replies: 85
    by Kepler » Dec 29, 2014 6:19 pm
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    85 Replies
    15355 Views
    Last post by KeplerUser avatar
    May 20, 2018 3:31 am
  • Will Crystalyte CT3625S controller support 52V nominal?
    Last post by amberwolfUser avatar « May 20, 2018 1:47 am
    Replies: 1
    by Stu Summer » May 19, 2018 3:15 pm
    1 Replies
    33 Views
    Last post by amberwolfUser avatar
    May 20, 2018 1:47 am
  • should you Toss a Leaking LifePo4?
    Last post by jonyjoe303 « May 20, 2018 12:47 am
    Replies: 4
    by Blueshift » May 19, 2018 6:19 pm
    4 Replies
    76 Views
    Last post by jonyjoe303
    May 20, 2018 12:47 am
  • how many 18650 battery do i need
    Last post by MatadorUser avatar « May 19, 2018 11:37 pm
    Replies: 8
    by want to build » May 18, 2018 3:55 pm
    8 Replies
    107 Views
    Last post by MatadorUser avatar
    May 19, 2018 11:37 pm
  • Please Help!!!!
    Last post by rockypro1User avatar « May 19, 2018 3:53 pm
    Replies: 28
    by rockypro1 » Apr 29, 2018 6:42 am
    • 1
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    28 Replies
    530 Views
    Last post by rockypro1User avatar
    May 19, 2018 3:53 pm
  • Brushless motor controller with reverse
    Last post by amberwolfUser avatar « May 19, 2018 1:27 pm
    Replies: 5
    by shane0926 » May 19, 2018 8:36 am
    5 Replies
    63 Views
    Last post by amberwolfUser avatar
    May 19, 2018 1:27 pm
  • Internal Resistance tester
    Last post by MatadorUser avatar « May 19, 2018 12:02 pm
    Replies: 13
    by EbikeAus » May 18, 2018 6:47 pm
    13 Replies
    135 Views
    Last post by MatadorUser avatar
    May 19, 2018 12:02 pm
  • TSDZ2 mid drive -- Flexible OpenSource firmware for TongSheng TSDZ2 mid drive motor
    Last post by casainho « May 19, 2018 4:30 am
    Replies: 118
    by casainho » Apr 17, 2018 2:38 pm
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    118 Replies
    3450 Views
    Last post by casainho
    May 19, 2018 4:30 am
  • Cordless Tool Conversion
    Last post by DrkAngelUser avatar « May 19, 2018 2:40 am
    Replies: 27
    by flyingbeekeeper » Nov 05, 2015 4:49 pm
    • 1
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    27 Replies
    4083 Views
    Last post by DrkAngelUser avatar
    May 19, 2018 2:40 am
  • Are these Panasonic batteries?
    Last post by Kris LanUser avatar « May 19, 2018 2:26 am
    Replies: 10
    by emr » May 09, 2018 6:36 am
    10 Replies
    253 Views
    Last post by Kris LanUser avatar
    May 19, 2018 2:26 am
  • Wind and Solar vs Coal, Gasoline, Nuclear
    Last post by billvon « May 18, 2018 11:14 pm
    Replies: 1974
    by Hillhater » Jun 05, 2017 4:38 pm
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    1974 Replies
    57121 Views
    Last post by billvon
    May 18, 2018 11:14 pm
  • Heavy duty spot welding electrodes.
    Last post by flippyUser avatar « May 18, 2018 4:44 pm
    Replies: 6
    by flippy » May 17, 2018 6:41 am
    6 Replies
    138 Views
    Last post by flippyUser avatar
    May 18, 2018 4:44 pm
  • “How to suppress an 18650 battery pack fire”
    Last post by garolittle « May 18, 2018 2:34 pm
    Replies: 8
    by garolittle » May 01, 2018 10:08 pm
    8 Replies
    400 Views
    Last post by garolittle
    May 18, 2018 2:34 pm
  • Lebowski's motor controller IC, schematic & setup, new v2.A1
    Last post by lizardmech « May 18, 2018 12:56 pm
    Replies: 1679
    by Lebowski » Feb 07, 2012 2:00 am
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    1679 Replies
    157009 Views
    Last post by lizardmech
    May 18, 2018 12:56 pm

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