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  1. C

    Prius Gen2 battery replacement and conversion

    Thanks for your post. I'm assuming you mean Nex Power (projectlithium.com). "Next Gen" lithium is also a company but seems to only offer PV and home power batteries? Nex Power do offer prius replacement batteries, but the price I see is $3221 (USD), and shipping to Australia is probably epic...
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    Prius Gen2 battery replacement and conversion

    That post is shows replacement of OEM battery with another NIMH. Has anyone replaced with a larger Lithium battery with its own BMS, and made it a plug in hybrid? Im wondering if this can be done, or if the car will reject a different battery and BMS. In other words, does the prius battery...
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    16s9p or 17s8p?

    Ended up building 16s9p and am stoked with the new battery. Thanks for your help.
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    Prius Gen2 battery replacement and conversion

    I have a 2008 gen 2 Prius with an original NiMH battery. The battery is aging and milage is not what it used to be. Has anyone had experience replacing these batteries with lithium cells, or perhaps running a lithium battery in parallel with the existing battery? I'm also looking at options to...
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    Jbd bms SP17S005 smart BMS issues

    Ended up getting the same JBD bms, this time with QUCC printed on the heat sink. It works fine for now. I was careful to connect B- before balance leads, and tested all the soldering of balance leads prior to plugging in. I have noticed the Bluetooth connection is fairly buggy, and seems to cut...
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    Cell Weight as a measure of quality

    Yes, all cells have the white insulation rings.
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    Cell Weight as a measure of quality

    Thanks for the responses, yes the cells are Chinese made cells. Thunderheart has done a review of them here and from that I decided they would be ok for my purposes: Queen Battery QB18650 2500mAh capacity test + comparison with QB18650 2600mAh Sounds like weight is no indicator of cell quality...
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    Cell Weight as a measure of quality

    I've recently bought a box of 160 new QB18650 12A cells and will only use 144 for my build. So I'm trying to quickly weed out the worst ones. I don't have an accurate way to test quickly so am wondering if there are any other properties that could identify the weaker cells. 90% of them are...
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    Jbd bms SP17S005 smart BMS issues

    Ok cheers, for that. I'm also considering Heltec BMS, which look quite different and were recommendedby a friend. Has anyone tried those, and are they also JBD based? I've been pretty unsatisfied with JBD. I'm pretty certain open circuit on b- or one of the balance leads fried it, and the...
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    Jbd bms SP17S005 smart BMS issues

    Why do you choose QUCC cowardlyduck, and is there a way to turn on/off via software or a physical switch? What is quiescent current usage? Can you please share a link for what you mean? I'm getting many results searching for QUCC smart bms for 16s
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    Jbd bms SP17S005 smart BMS issues

    Are QUCC based on Jbd? https://www.aliexpress.com/item/1005002306907257.html
  12. C

    Jbd bms SP17S005 smart BMS issues

    That's the current read out.
  13. C

    Jbd bms SP17S005 smart BMS issues

    I while unplugging the BMS from the test setup the blue magic smoke came out of the BMS where the balance leads plug in. Now when I plug it in, cell group 1 reads incorrectly as 5V and group 2 shows 0V, so I fear I have fried this BMS. As AW mentioned these things seem pretty sensitive to the...
  14. C

    Jbd bms SP17S005 smart BMS issues

    thanks AW! There are 4 pads in the box marked "SW" do I just short out two of the larger ones to turn BMS off? Bit reluctant as I don't want to ruin anything by shorting it out. I did not measure load current but there is at least 20W being consumed by the glowing light bulb in the first...
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    Jbd bms SP17S005 smart BMS issues

    I've bought a JBD smart bms recently and have rigged a primitive16s1p test board with old cells to test the functions. Including abnormal states like over temperature and unbalanced cells. I Soldered all the balance wires onto the cell holders and have wired up b- according to schematic...
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    Jbd smart bms heads up

    Got there in the end.
  17. C

    Jbd smart bms heads up

    I'm having trouble accessing the 16S wiring diagram for my SP17S005 80A BMS. Do I just connect BC16 to BC15 as shown above and then wire 16S in a similar way to 14S?
  18. C

    Imax B6 V3 / V2 balance charger vs ICharger and ToolKitRC

    Thanks for taking the time to reply. I used the charger to balance a small 2s pack that I run in series with a 14s pack to get me up to 60V/16s for my Ebike. The small boost pack has no BMS so the hobby charger was how I balanced it when needed. I'll go back to using a resistor to balance if...
  19. C

    Imax B6 V3 / V2 balance charger vs ICharger and ToolKitRC

    I have fried my Imax B6 V3 charger by momentarily connecting a 5S pack with incorrect polarity on the output side. It beeped and notified of wrong polarity before emitting the magic smoke. I opened it up and found a small mosfet had been fried. It still powers up but says "Connection Break" when...
  20. C

    16s9p or 17s8p?

    Yeah several friends have bought packs for their bafang mid drives at cap rouge. They offer some after sales support and the batteries I've seen are well built. They don't stock what I'm looking for in a complete pack and individual cells are overpriced.
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    Queen Battery QB18650 2500mAh capacity test + comparison with QB18650 2600mAh

    Thanks for posting this Thunderheart, very useful. I'm considering ordering for a 16s battery build, hopefully nothing has changed with the qb 2500mAh cells over the past few years. Did you do any cycle life testing on these cells?
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    16s9p or 17s8p?

    Oh yeah, I just found this thunderheart review. Somehow missed it in my earlier searches. Thanks for prompting me AW. Queen Battery QB18650 2500mAh capacity test + comparison with QB18650 2600mAh
  23. C

    16s9p or 17s8p?

    Thanks everyone for your responses. Regarding matching cells, is it normal to capacity test new cells prior to building packs to weed out bad ones? I was hoping not to have to do this. I thought having 8 or 9 in parallel would average out small irregularities. My test setup is pretty basic...
  24. C

    16s9p or 17s8p?

    Current bike weight is 27.5kg. When I say fences, they are only waist height. We have areas were motorbikes ar prohibited but ebikes allowed, and there is usually some low gate or barrier to discourage motorbikes.
  25. C

    16s9p or 17s8p?

    Yes it's difficult to buy things from here and postage is expensive. Where would you buy cells? I will check out NKON, but the website is not forthcoming with shipping quote to Australia. Last time I opened up the battery, the cells in the 14s pack were perfectly balanced, and I did a Top...
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