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mark walkom

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  1. mark walkom
    thanks for replying @EVSupport, I don't expect free support but appreciate any assistance 4 x 12v 100ah Humsienk LiFePO4s, using the default charger that was reflashed before I changed the batteries! so this was an existing issue with the original sla's. basically there's no regen unless I put it in low and then go down a steep hill, if I do that it'll reduce the speed back down and regen. but using the brakes doesn't trigger regen before the physical brakes kick in like it used to.
  2. mark walkom
    bit of an update here, I managed to get into a discussion with hisun support via wechat and they are telling me that the sevcon needs reflashing. they won't provide the ability for me to do this myself and I am 5-6 hours from my "local" dealer, so I am investigating how to do this https://electricdriveengineering.com.au/wp-content/uploads/2024/10/DVT-Manual.pdf seems like it might work if I can get all the things required
  3. mark walkom
    was chatting to delta-q about the charger profiles and they advised that for the ic1200-048;
  4. mark walkom
    there's another thread on something similar to this but it sounds like you are overloading the batteries and they're cutting out to save themselves I am not an engineer by any means, I do wonder if you could charge to 90% and leave it space for the regen to feed into the batteries?
  5. mark walkom
    I haven't noticed any major difference in that area, no. it's heaps quicker off the mark and consistently zippier, and it does feel lighter to handle, but not rough or stiff the 12v charges off the 48v system somewhere, not sure exactly where it does this (the sevcon maybe?) but you shouldn't need to charge it separately
  6. mark walkom
    @Gorj what charger are you using?
  7. mark walkom
    for anyone following along, you can find information about different charger profiles for the onboard one right here - https://support.delta-q.com/hc/en-us/articles/14188856858893-Choosing-an-Algorithm-for-a-Lithium-Battery
  8. mark walkom
    these are the same batteries as what I used! I am finding its providing the full 400a when I switch to high though?
  9. mark walkom
    the bus bars would be for the 12v system, as I've got a set of lights, a USB charger and another plug for other things (eg my weed sprayer pump) that I might connect adhoc
  10. mark walkom
    I had a loose connection on one of the discovery batteries which melted and stopped the entire buggy, so I took the dice and ordered 4 of these https://ebay.us/m/2yFxar, 12v 100ah humsienk which had decent reviews online and is (at time of writing) 15% off turns out they fit nearly perfectly into the existing spots, they're just a bit shorter than the originals (hence the blocks of wood under the brackets), which means I can put a other 4 in if I really need more capacity I was able to reuse the cables and I replaced the 12v at the same time and relocated it into the extra space. one super handy side benefit is I can now very easily get to the drive train to grease it this has been a fantastic change, it's heaps lighter and the power is just constant now. the last thing I need to do is get a better gauge (maybe this one https://au.renogy.com/500a-battery-monitor/), update the charger profile and maybe install bus bars for the 12v and replace the brackets with straps
  11. mark walkom
    this is excellent, thanks for sharing the pics as well pity the batteries are a bit more expensive here in au as that system is amazing
  12. mark walkom
    if that also controls the brake lights then the switch is working, I cleaned it anyway based on your comment and it hasn't helped unfortuantely
  13. mark walkom
    the regen braking on my e1 has stopped working unless (for eg) I am going down a hill in low and it's slowing things down to stick to the 10kph limit. when I drive and take my foot off the accelerator it's not initiating the regen to slow things down and instead just coasts at whatever speed it is at, or speeds up as the regen is not limiting it. the brake lights work, so it's probably not a fault with the sensor on the brake pedal hoping someone else might be able to provide some suggestions on things to check, as the mob that I bought it off seem to have gone silent on me
  14. mark walkom
    you've got 4 that are all 48v x 30ah yeah, doesn't that mean you get 120ah of capacity if they are in parallel? or am I missing something....
  15. mark walkom
    so about 30km range? (unless my math sucks)
  16. mark walkom
    @BuggyBoy it'd be good to hear about the range when you get a bit of annecdata!
  17. mark walkom
    bloody hell, 5K for that is a bit much for me! 🤣 nice work though, glad to hear they slot in well and are making a big difference. I'd be interested to see what the range/use is like now
  18. mark walkom
    for the aussies here - https://outbax.com.au/products/voltx-12v-100ah-bluetooth-daly-smart-lifepo4-battery is on special if you use the code from https://www.ozbargain.com.au/node/867838
  19. mark walkom
    I wonder if something like https://vi.aliexpress.com/item/1005004622768370.html or https://vi.aliexpress.com/item/1005006129467622.html would work both 48v, single unit, bms included. the only question would be if they are ip rated at all (which I can't find info on). they only seem to offer 50A sustained output though
  20. mark walkom
    that's awesome, thanks mate!
  21. mark walkom
    that's fantastic, thanks for sharing! did you happen to grab photos of the the new layout?
  22. mark walkom
    heh, just get https://www.bigw.com.au/product/voltx-48v-100ah-pro-lithium-battery-lifepo4-100a-bms-deep-cycle-rv-camping/p/9900111907 and then use 5% off vouchers and your rewards 10% off for the month on that, save a fair whack of change! I also found https://www.solarbatterywarehouse.com.au/solar-battery-shop/fusion-solar-agm-batteries-6v-5lang-bc89t-6c2c2-sswn5 for a bit cheaper, so there's other options out there if you want to go a single big unit. or https://au.renogy.com/core-12v-24v-48v-100ah-deep-cycle-lithium-iron-phosphate-battery/#op={"id"%3A509%2C"options"%3A[{"optionId"%3A"252"%2C"value"%3A"485"}]} for something that might be drop in for an even cheaper price
  23. mark walkom
    spoke to litime and they don't have the 48v batteries in au, with no short term plans to sell them
  24. mark walkom
    in au the relion are being replaced with allion, at least according my local RJ batteries shop I am keen to look at the litime, but finding a local 48v is proving a bit hard. 12v at 50ah can be picked up on eBay for well under $300 each though
  25. mark walkom
    another aussie with an e1 looking to change the batteries! this thread is tops, so thanks to everyone who's shared details looks like litime will be decent and reasonably easy to get (ebay or direct from them). the relion are only available at rj batteries, and they don't publish prices online which is pretty crappy also I posted about my experience a few years ago if anyone is interested -

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