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BuggyBoy

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Everything posted by BuggyBoy

  1. BuggyBoy
    Just to be clear, removing the brake pedal switch doesn't fully remove regen, it just stops it activating alongside the brakes - if you fo down a hill over 10 kmh in low, regen will still activate. You don't actually have to physically remove the switch either. If you get down and look at the break pedal closely you will see a very small reed switch and two wires coming out of it and going through the bulkhead. If you then trace/identify those two wires coming out of the other side of the bulkhead, from memory all you have to do is cut them and join them together with a connector block. This permanently completes the circuit (the reed switch works by breaking the circuit when you brake). This worked for me, but i'm not an electrician or expert so cant gaurantee it will work for you...! if it doesn't work, you can simply connect the wires back up using the connector block as you haven't removed the switch.
  2. BuggyBoy
    I had a problem with regen braking tripping the battery BMS's at max regen down a step hill - the whole system would shut off and would only reset with ignition on/off. Would also somehow throw the batteries out of sync and they then wouldn't charge properly with the onboard DeltaQ charger, had to buy a cheap $100 48v separate charger that didn't care about voltage differences and would bring them all back up to 52v. The DeltaQ would then charge as normal. Fixed the issue by removing the regen brake pedal switch - still have regen if i go over 10kmh, but means i can now control when i want regen (i.e. batteries are very low). Had no issues since, but do miss the extra braking power down the very steep hill. One thing i miss about the old AGM's - no sensitive BMU to shut off batteries if current/heat exceeds limits, but better to extend battery lifr in the long run of course...
  3. BuggyBoy
    What does that do?
  4. BuggyBoy
    Great, cheers
  5. BuggyBoy
    What’s the Polaris peddle lock solution? Need this as well - truley a crap design on the Hisun! any links available to it?
  6. BuggyBoy
    After a bit of experimenting it would seem to be after max discharge rate is reached. If I go up the hill in low then all is fine - external battery monitor shows charging to 100%, battery lights all show 100%. If go up in high then i get batteries discharged to different levels and charging shows odd readings. I suspect some of the batteries are exceeding thier 10sec 400a discharge and becoming a unbalanced with the rest of the pack. The onboard charger then thinks the lower batteries are two low to charge and wont charge. Isolating the batteries and then using an external charger that can charge from a low state of discharge to bring them back up seems to work. The Delta charger then brings the pack back up to 100%. I think I need a 5th battery to deal with the very steep hill and spread the load, and keep it in low. Should solve the issue.
  7. BuggyBoy
    They fit directly into the current battery box. Would have had to cut out sections and move controllers etc.. to fit one large unit. Also better when one battery fails you are just replacing one battery and the buggy will still work with three - just looses a bit of range - until the battery is replaced, I.e no down time. charger - same issue with onboard or external, so unlikely it’s the charger. BMS’s most likely as already had to change one. Seems to always happen after a steep hill climb using around 350a-400a draw, sometimes ok but other times one battery will indicate under 10% and the others much higher. Seems like they discharge/charge at different rates, not sure how that is possible as all connected. I thought the BMS’s and canbus connections were supposed to balance it all out. Possible the voltage difference becomes to much and the BMMS’s refuse to charge?
  8. BuggyBoy
    So have Allion GC2 batteries which are great. Chosen a charging profile which should suit them but get really odd charging scenarios. According to the lights on each battery, one battery will be under 20%, one fully charged, and the others at random levels. Sometimes all fully charged, and then after a few minutes back to random levels again. The battery monitor (Allion) gauge also shows random states of charge flicking between say 10% then 80% and all over the place. Clearly an issue somewhere - cables are slightly oversized and don’t get hot, all connections solid. 12v battery seems fine. Anyone else experienced this?
  9. BuggyBoy
    Well, now I'm wanting to easily disable the regen as don't need it and it keeps tripping the battery BMS's when fully charged going down a hill (too much current, nowhere to go) as i suspected it would. I've attached two pics - on the one called 'Microswitch' is this the switch that activates the regen based on pedal positions (looks like it breaks a circuit when brake pedal is pressed?). Presumably, if that switch stayed closed the regen wouldn't activate when braking? (assume the speed-based regen would still kick in at some point though). The other pic is of a what i thought was the wiring/connector from the microswitch. I unplugged it, the ATV went a few meters then stopped. Plugged it in, and it went again. Any idea what this connecter is?
  10. BuggyBoy
    I'm wanting to easily disable the regen as don't need it and it keeps tripping the battery BMS's when fully charged going down a hill (too much current, nowhere to go). I've attached two pics - on the one called 'Microswitch' is this the switch you are referring to that activates the regen based on pedal positions (looks like it breaks a circuit when brake pedal is pressed?). Presumably, if that switch stayed closed the regen wouldn't activate when braking? (assume the speed-based regen would still kick in at some point though). The other pic is of a what i thought was the wiring/connector from the microswitch. I unplugged it, the ATV went a few meters then stopped. Plugged it in, and it went again. Any idea what this connecter is?
  11. BuggyBoy
    That’s correct.
  12. BuggyBoy
    Yeah about right. But remember I can double the capacity from the four batts I have if I needed more, can fit another four in the empty slots. I’m at minimum batts.
  13. BuggyBoy
    So did 4km and battery went from 98% to 85%....
  14. BuggyBoy
    Might be a while - we have a short drive up a very steep hill, doesn’t do much else apart from that. All I can tell you is it uses 5% of battery to do that round trip of 1k - using that logic range would be 20k’s, but it would obviously be using more to pull a family and shopping up the hill than one person going down the hill, even with regen. I’ve got a 3k flat-ish circuit where we live, might try that. Just fitted the Allion battery gauge, so can finally see the proper state of batt charge and amps being pulled.
  15. BuggyBoy
    No, that’s what I’m getting - but original Discover batts never even got to 400a. 2 kids, 2 adults…it’s a squeeze but it’s only for about 5 mins from water to top of island we live on.
  16. BuggyBoy
    Can’t speak for others but the Allion batts were straight swap, everything worked. Had to make a couple of longer leads, and since changed DeltaQ to Lithium profile, but essentially a drop-in system. About three hours all up. Amazing performance now and getting 400a draw on dash meter when up very steep hill with four people in, so finally using the systems full potential. Very happy.
  17. BuggyBoy
    We have no fuel near us, so EV only option. Now a hybrid buggy would be good, best of both worlds until batt tech doubles in capacity...
  18. BuggyBoy
    Ok, so after the new LifePo4's are in, the one wild card i though might crop up, has. Before was dumb batteries with a smart buggy system. Now its smart batteries 'talking' to a smart buggy. If i have the new batts at 100%, when we leave our property we have a very steep hill for 100m's. The regen is trying to feed the full batts, but the batteries BMS is obviously just rejecting the charge as full, and throwing something at the buggy system, which the means the buggy throws up an error message (5### - forgot to make a note of it). All power is lost, but easy to reset by simply turning ignition off/on again at bottom of hill. So questions are: Has anyone experienced this? If so - what have you done to fix it (we are simply charging to 95% instead of 100%) Anyone know how to disable the regen? We don't need it anyway. Cheers.
  19. BuggyBoy
    Well i took the dive and got x4 Allion GC2's. Very easy installation - virtually a battery swap as they are the same size. Only thing i had to do was make a couple of new cables, but that was easy enough. As someone else earlier in the thread said - night and day from the Discover batteries. So much weight removed the E1 site higher and the steering is now very easy. Max power is now available and it shoots up steep hills - something the Discover batteries never really did. Combo of weight removal and more power i think. All thats left is to update the Delta charger to a lithium profile, but so far, worth the $5k (Aus Dollars). If you are thinking of doing it, don't hesitate!
  20. BuggyBoy
    Depends if the BMS is 200, and is capable of being used in parallel, and allows doubling of amps. 99% of the reviews seem AI or server farm generated - too many red flags for me!
  21. BuggyBoy
    Only have steep hills here unfortunately! Might have to go for x5 Allion GC2 48v/30ah which can push out 65a for 20 secs, giving me 325a in total. Just Aus$6.5k. Expensive exercise! But hopefully that would be it for 5-10 Years. Might start with 4 and see how we go, and save up for a 5th!
  22. BuggyBoy
    hmmm - https://www.rjbatt.com.au/news-and-advice/relion-insight-series-48v-battery-recall Spike to RJ - they are stopping doing them - cant find another Aus supplier - do you know who else stocks them in Aus?
  23. BuggyBoy
    Anyone use the Allion AL4830-GC2? https://www.solarbatteriesonline.com.au/product/allion-lithium-ion-48v-battery-al4830-gc2/ Maximum continuous discharge current 60A (2C) Maximum peak discharge current 65A for 30 seconds, 100A for 10 second Would x4 be enough? Technically yes - 240a continuous/260a 30secs/400a 10secs - but thats at the limit of the battery ($5424) 5 might be better giving: 300a continuous/325a 30 secs/500a 10secs....but expensive AUS$6780!
  24. BuggyBoy
    The BMS installed our range of lithium batteries combine to provide greater load capacity - not greater throughput. We specifically choose to install BMS that don't increase in throughput amperage to protect the battery systems we manufacture from being used in applications they are not designed for (such as off grid storage, cranking, complex UPS etc...) Connecting a pair of 100A 48v lithium batteries will provide a 200A bank capacity - while the BMS will remain 200A continuous and 400A peak. There are lithium batteries on the market that have larger BMS - we don't sell nor deal in them, truth be told - but they are available May be worth looking into ranges such as the Lynx 400A 48v or Daly's own 400A 48v BMS unit. What application were you intending to use the batteries for that 200A continuous is not sufficient?
  25. BuggyBoy
    So its not usual for a 200a BMS to limit combined continuous output across multiple batteries in parallel? Most BMS systems will allow it the combined output? I still don't get how people are combining four 48v 50ah with 50a output batteries in parallel with a 100a BMS (for example) and getting enough current...

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