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12V, 35 Ah Sealed Lead Acid Battery

12V, 35 Ah Sealed Lead Acid Battery

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$75 USD on Harbor Freight Tools
Designed for constant voltage input and repeating use, this universal battery is ideal for a variety of energy needs. Suitable for use as a solar storage bank, the battery is also great for powering lights, equipment, tools, accessories and electronics. This UL listed battery features a top post design with stainless steel hardware to resist rust and corrosion. Absorbed Glass Matt (AGM) for longer battery life, low self-discharge rate, better low-voltage charging and capable of repeat deep cycle discharge No memory effect Valve regulated, spill-proof sealed construction Top post design with stainless steel hardware to resist corrosion Sealed lead acid

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  1. F

    El Moto (Electric Motorcycle)

    2
    32
    10K
     by Functional Artist
    1. F

      · Registered
      Joined
      ·
      878 Posts
      Discussion Starter · #16 ·
      The components I used for the propulsion system are:

      Motor: Manta II 24V-48V Brushed DC motor
      http://www.ebay.com/itm/Manta-II-10...368606?hash=item281b84a0de:g:iMQAAOSwZ1BXduj5

      Speed controller: Kelly kdz72550
      http://kellycontroller.com/kdz7255024v-72v550aseriespm-p-965.html

      Speed controller heat sink:172mm aluminum
      http://kellycontroller.com/172mm-aluminum-heat-sink-p-1187.html

      Main Fuse: CNL 500A
      http://kellycontroller.com/cnl-500a-fuse-p-120.html

      Main contactor: kzj 36VDC coils 400A
      http://kellycontroller.com/main-contactor-kzj-36vdc-coils-400amps-p-1153.html

      Precharge resistor: 36V precharge resistor
      http://www.ebay.com/itm/Resistor-Pr...d=251215909594&_trksid=p2047675.c100005.m1851

      Diode: 3A HD solenoid diode
      http://www.ebay.com/itm/3-Amp-Heavy...d=271141000800&_trksid=p2047675.c100005.m1851

      Power cut-off: Battery kill switch
      https://www.harborfreight.com/battery-cutoff-switch-63425.html

      Charge meter: LED 36V State of Charge meter
      http://kellycontroller.com/meter-led-36volt-state-of-charge-p-204.html

      Batteries: (3) 12v 35AH universal AGM (Absorbed Glass Matt) lead acid
      https://www.harborfreight.com/12-volt-35-amp-hour-universal-battery-68680.html
       
  2. A

    Understanding Batteries - Please help

    2
    34
    4K
     by AmaToolBox
    1. F

      · Registered
      Joined
      ·
      878 Posts
      #31 · (Edited)
      AmaToolBox said:
      Agreed on the learning to drive! That's why my son's quad will be the learning one... Already swapped in a harbor freight 212 cc engine as a project, but now it's time to up the game!

      Phase one will be ev transform, phase 2 may incorporate a gear box, phase 3 will be extended range. We will see how that plays out.

      With the motorcycle, how fast did it her up to and how long does it drive? Might seek out similar hardware for the big quad.

      Sent from my XT1254 using Tapatalk
      Click to expand...

      I did several go carts but, El Moto was my first "bigger" electric conversion project

      I wanted to start off small & slow (baby steps) until I understood everything & felt more comfortable

      So, I mounted everything on a Dingo go kart "El Dingo" (Electric Dingo)

      https://www.youtube.com/watch?v=Ysib9TNE_sc&list=PLoL6eIYWPO_ldEXj0hJX9nWGrLI8KmC7q

      It's kind of a long story but, I got suckered by an ad that said:

      "Build a super fast go cart"

      "NO expensive speed controller required" "

      "let your battery voltage be your speed controller"

      ...the ad even showed an example titled as "Concept of battery speed controller" which was just a "slide throttle"


      Well, (from personal experience) it's NOT a good idea

      It was like driving an old hot rod car with a shift kit in the transmission

      ...when you "got on it"

      ..."it would chirp the tires & kinda bang the gears

      ...really, really hard


      It banged so hard that

      ...it stretched the chain & bent the motor mounting bracket on the first (& only) test drive

      Then, I got a proper speed controller :D


      Back to the question

      El Moto started off running at 36V (3- 12V 35AH SLA solar batteries from Harbor Freight)

      https://www.harborfreight.com/12-volt-35-amp-hour-universal-battery-68680.html

      ...then, I upgraded to 48V by adding another, 12V 12Ah battery

      When running at 36V it had a top speed of ~25mph & ~30 min. run time

      When running at 48V the top speed increased to ~35 mph but, the run time seemed to decrease dramatically
       

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