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  1. S

    Adding extra battery

    Hi guys, I have a gng mid drive chain reduction kit 60v controller came with it but I have been using a 48v 15ah battery the whole time, the battery is actually 5 years old but I haven’t used it that much so it’s working great still. . I must say it’s working great and goes about 30max . I...
  2. S

    Range

    Ok I just want to thank everyone who replied regarding my post. I am now wondering, I have a wattsup meter installed. Because I don't have it wired permanently on can I keep track of the ah used by keeping a mental log, say if I got to work on my daily commute and it says 3.5ah used can I...
  3. S

    Adding battery to 48v setup

    I see , my current battery has a bms would this stop the problem of one battery potentially unbalancing and I'm guessing both batteries would need a bms ? This is more complicated than I hoped ! Thanks again for your time and brain power ! Starway
  4. S

    Adding battery to 48v setup

    Ah ok that makes more sense thanx for taking the time to answer. If I'm using lithium can't I just charge both batteries with their own charges ? So basically to get 60v I would have to get a 12v battery with 15ah and wire it how you showed me? And then figure out how to charge it ? I thought...
  5. S

    Range

    I have not tested my range out fully but I have a latest gng mid drive chain version running at 48v I believe it runs at 450w at this voltage. If I have a 48v 15ah battery that equals 720 watt hours , people say they average 20 watts per mile that means I'm looking at about 36 miles ? Does that...
  6. S

    Adding battery to 48v setup

    Anyone ?
  7. S

    Adding battery to 48v setup

    Hello, I have a gng mid drive 60v controller and i am currently using it 48v if i wanted to use it as 60v what would i have to add on? as the battery is alreasy 54v hot of the charger. How would i connect it also? as i am currently connecting everything with these terminal barrier connectors...
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    Specialized Hardrock 48v 15ah Mid Drive GNG Chain Drive

    thanks for your reply jateureka but its kinda confusing as im a complete noob. Anyway i suppose i have a question which is, Would a 48v controller be better for this bike (now that i have a 48v li-ion battery) or is it better that i have a 60v controller which has a lcv of 40v anyway? whats...
  9. S

    Your Creation's Before & After Pics

    Before After with added battery controller and gng motor kit, changed the seat added a cat eye wireless and lemon hobby wattmeter total cost about 930 ish peace out STarway
  10. S

    Specialized Hardrock 48v 15ah Mid Drive GNG Chain Drive

    Hello all, I just thought I would share my creation on the board to see what people think and to get any advice on how I can make it any better. It started out as a second hand bike from gumtree costing £190 pretty good condition specialized hardrock Added a GNG motor and a 48v lithium...
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