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  1. M

    Force scooter gets upgrades

    You probably haven't seen one of these before, it's a Force 450 that I've had for many years. It was sold through a company in Santa Barbara, California in 2003. A friend of a friend worked there and was selling them for $60 brand new. Scooters were pretty basic twenty years ago. This came...
  2. M

    My first of several stupid questions

    Wow! So much information to digest, I need to read it over several times to wrap my feeble mind around it. VERY much appreciated. You are correct wolf, there is a bypass wire on the shunt. I installed it after watching several-too-many Y-tube videos telling me shunt modding was an easy way to...
  3. M

    My first of several stupid questions

    Speaking of that...I was surprised that the bar across the mosfets is steel. I could easily make one from aluminum with more surface area for better heat dissipation. Anyone see a downside to that? (and my apologies to everyone for drifting off the Battery Technology topic, just taking...
  4. M

    My first of several stupid questions

    The 24v charger is 2 amps. This board seems like it was built to handle more than the task it was given. The caps are labeled 50v and the mosfets are IRF3205, but that doesn't tell me anything about its ability to handle more charging amps. I certainly don't want to smoke this thing, I'd rather...
  5. M

    My first of several stupid questions

    I really appreciate everyone's input, obviously I have a lot to learn. My second charging question might be too specific to my particular situation for an answer, but I'll welcome opinions and best-guesses. I'm dealing with a scooter that came with a 24v 2 SLA battery setup. After checking the...
  6. M

    My first of several stupid questions

    I appreciate the information. I've been reading for weeks but some answers continue to elude me. I'll be installing a smart BMS which might allow for some adjustment of the charge/discharge parameters. My thinking may be flawed, but I thought it would be best to look for a charger that isn't...
  7. M

    My first of several stupid questions

    I'm collecting the bits to assemble my first li-ion battery pack and need to order a charger. The battery will be a 36v 10s5P configuration using LG MJ1 cells. The manufacturer recommends a constant charge rate of 1.7 amps, but that's for a single cell. Do I need to increase the charging amps...
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