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    40AH CALB lifepo4

    Bought 16 of these around 2015 - they were used lightly. Cells are still good and still perfect for a solar energy storage, UPS, or scooter. These are 40AH . The last capacity check i did i was able to get at least 32AH (it may give out more than this) before cutting the test off . IR is...
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    Hyperion EOS 1420i NET3 - SOLD

    charger is dead- This charger worked yesterday and today it won't power on at all I don't have time to fix it. If anyone is interested PM me - i can ship it out only charging to ship it out.
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    Hyperion EOS 0840i

    looks like Hyperion came out with a new product haven't seen anything from them in a while - i'm still running my 1420's without any issues but looks like it has been discontinued and there hasn't been a lot of new products from them Hyperion EOS 0840i 8S DC Charger (1000W Output)...
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    weatherproof ebike

    i have been brainstorming about building a new ebike for riding in the rain i know this topic has been discussed before however i figured i'd share my solution this issue has been discussed https://endless-sphere.com/forums/viewtopic.php?f=30&t=34135 https://www.youtube.com/watch?v=gwlbAJLzI_w...
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    cool solution for riding in rain

    I normally always check the weather network, and if there's any chance of rain i do not ride but with fenders this just might be the solution, anyone try one of these?
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    ahh camper bike

    this is the life- perfect for a cross country trip. park anywhere and take naps when you get tired or take a break if it starts raining now how much extra wh/ per miles you need to carry this drag is another matter
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    9c rust restoration

    I recently acquired a 9continent 2806 - the motor was used in a humid climate so naturally there was a bit of rust inside. I am sure this has been covered by others on here but i figured i`d share my method- the rust was light so it wasn`t a major concern my method involved getting a 1liter...
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    CA-DP CA-DPS differences

    apologies if this was already discussed somewhere- i am simply creating this for a visual reference- hopefully someday this helps someone CA-DP with the DP you only have a yellow wire going to SP from SP the yellow wire goes to pin 5 in the JST-SM connector CA-DPS with the DPS you got the...
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    local manufacturing for hub motors

    i don't get it i know a lot of vendors love china- buy cheap in bulk re-sell and make a profit some even deal with Taiwan who have higher standards we love cheap goods and bottom line is these cheap goods are going up in price- in china there's labour shortage and wages going up every single...
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    CALB LiFePO4

    " The new CA cells have replaces the older blue case SE cells. The CA cells generate less heat from operation and deal with cold climates better " http://www.evsource.com/tls_lithium_calb.php http://www.evsource.com/datasheets/BatteryData/CA%20Series%20Catalog%20-%20Available%20(1).pdf...
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    battery format - cylinder vs pouch

    http://batteryuniversity.com/learn/article/pouch_cell_small_but_not_trouble_free http://batteryuniversity.com/learn/article/types_of_battery_cells i can't make up my mind with which format to go with. i am leaning more towards the cylinder format as they seem to be more reliable than pouch...
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    re-drilling a 9C hub

    1. so i got my templates 2. stay tuned my next step is to use a transfer punch to mark the new holes than use a laser guided press drill to push 2.4mm holes into the flange to support my new 13/14GA butted spokes
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    a123 20amp

    im planning on building a legit pack out of a123 amp20 20ah cells however it only comes in cartons of 20 - i only need 16 anyone wanto split on a carton? http://www.buya123batteries.com/AMP20M1HD_A_Lithium_Ion_Prismatic_Pouch_p/amp20m1hd-a.htm these cells are truly nice 1. there's a warranty...
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    euro trip observation

    decided to drop a quick note did a nice euro trip of the north and i must say ebikes arent really that popular here trekking through the netherland everyone bikes everywhere but on foot- same with london and other countries... i did see a few ebikes- and tour guides/richshaw using golden motors...
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    cargo bike stolen again

    this city sickens me to my stomach-nothing but a bunch of bums living off stealing today is not the 13th but it may as well be on my way to work my rear tire had a flat no biggie- i replaced the inner tube and took off after work i took my usual route which is normally over a 1.3 km bridge /...
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    my first e-bike

    the bike in the pic is actually my 2nd generation not my first my first was the same bike but used the kit in the below picture- the hub motor was small and it used a seatpost rack to hold the sla battery I got the bike for free a guy selling it in coutrice ontario - he was moving and selling...
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    Electric Yuba Mundo Build

    After my xtracycle got stolen last year- i had to rebuild again The main goal for this build is range.....after doing much research between the edge runner and the yuba i decided to go for the yuba due to price and good reviews..... The yuba does have some proprietary components i will...
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    2807 9c spoke issues

    Hey has anyone had spoke issues with the 9c's? i just bought mine brand new when i first got it and started riding there was all sorts of clicking sounds coming from it- after a week it made a creeking sound and i stopped riding it immediately i understand you ride it for a week for things to...
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    my yardworks adventure

    so i set a goal for myself this summer to visit a friend who lives 50km away to make it there and get back i had a pretty ghetto old ccm excel bike with a low key cheap chinese controller and a golden motor pro 901 500w on it but no battery being short on time - ordering good cells online was...
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    greenworks 40v - 4AH

    Has anyone used this battery? 1. What chemistry is it? 2. Does this unit contain a BMS? (based on the verbiage "Light indicators for easy check of power level" i am assuming so) it might not be the cheapest lithium solution but makes me curious what's inside trying to get ahold of green works...
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    hall wiring

    for reference; out of a 2807 9c left to right
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    micro batteries

    http://news.illinois.edu/news/13/0416microbatteries_WilliamKing.html i'll believe it when i see it
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    cargo ebike got stolen today

    my cargo bike was a katamandu norco 97 model i bought off craigslist attached to a xtracycle free radical - i paid about 90 for the bike and 300 for the kit - so 400 down the drain- anyway i kept her in a designated biking area- chained to a rack with the front wheel...
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    single cell tester

    Here's a simple single cell tester i use occasionally- parts: 2x4 = free light bulb ( made by variety of vendors, ancor makes 12v, there's 40w 12v torpedo lights mine were 2 dollar a piece made by Symban) 2x 50w 12v any DC meter (i use watt's up) but any multi meter/amp meter will do 14 AWG...
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