bowser

I honestly can't believe the run time i get from my recent lipo conversion. We took it bush last weekend and he would have done easily 12km of fire trails over a couple of hours and the battery dropped from 42v to 37v. I'm using 15ah setup and was going to add 2 more batts to make it 20ah but don't think will worry now.

Went for a really good ride with the boys today, bike performed flawlessly and lasted way longer than I expected, still is at around 39V after their riding session. I was contemplating adding another 2 more batts to make it 20AH but don't think I will worry at this stage. One of them had a good stack and broke the seat plastic so think i will just get a local person to knock up a replacement seat with padding more like a normal motorbike.

Thanks for that yet again, I was thinking it could only go down to 37V so a bit more riding time again. Will move the watt meter up on top of the batteries, was just sitting there for the pics. I'm definitely going to need to do something with the throttle, it's snappy as anything now, PITA for turning sharply when you want to go slow

Batteries are all wired up and installed, fully charged they are just over 42V, what is the minimum I can let they get down to before charging? here you can see all the battery XT60 connections and the XT90 connections which I can disconnect to charge each bank of 3 batteries I went a little crazy with retaining them on the bike and used the existing battery bag and also one of the fire blanket charge bags just to protect the little guys a bit.

thanks again

so my batteries and gear finally turned up today, very slow shipping from HK. I'm planning on wiring up as per the diagram you posted Gwhy and split them in 2 x banks of 3 for charging with those X200 AC/DC chargers i previously linked. settings are listed here http://www.imaxrc.com/images/pdf/X200%20ACDC%20manual%20en.pdf Question what settings do i use for charging them like this? Charge Amps? 0-10A Discharge Amps? 0-3A Cut off Low Input? Range of setting:10-24V. Lowest cut off input voltage, charger will stop charging/discharging when input voltage is lower than setting value. Cut off Temperature? Range of setting: 40-80°C. Cut off Temperature, char- ger will stop charging/discharging when temp of batteries is lower than setting value. Cut off Capacity? Range of setting: 0.1Ah-10Ah. Safety capacity. Charger will Stop charging/discharging when capacity of batteries is higher than setting value. Cut off Time? Range of setting: 10-200mins. Safety time, charger will stop charging/discharging, when charging/discharging time is less that setting value. LixxCheckTime? Range of setting: 5-60mins. Time for checking cells count of LiPo battery pack. Waste Time? Spacing interval between 2 Cycles. Range of setting: 1-60mins. Cycle Time? Range of setting: 1-6 times.

no luck with the tamer, he didn't have any left in stock

thanks, i emailed him and he said he didn't make them for Osets, I did order one from that site so will see if it turns up and if it can be made fit

Gwhy, do you still have the contact details for guy who makes throttle tamers for the 36V bikes?

well I decided on a charger, ordered 2 of these today (free shipping deal) http://www.hobbyking.com/hobbyking/store/__53601__HobbyKing_8482_X200_AC_DC_Touch_Screen_Smart_Battery_Charger_10A_6S_US_Plug_.html the built in power supply sold me, will allow a quicker charge time for the 6 batteries than the single 10s charger and simplify without needing a separate power supply. Plan to split the batteries into 2 separate banks of 3P and charge them in a fireproof bag

http://www.picoamps.de/automotive/doc/TorqueModuleOSET.pdf

thanks heaps, much appreciated

I'm struggling with how the running diagram needs to look for 6 x 5s batteries for a 36v system. I thought i needed 2 lots of 3 batteries connected in parallel (all reds connected to each other and all blacks connected to each other) then connected in series (one red on one set connected to one black on the other set) and the remaining red and black leads are the system leads - or is this wrong? if so, appreciate if someone could draw up a pic like mine showing all 6 batteries wired up cheers

have a look at the diagrams i posted previously and the parts i have listed. I've looked at my "running" diagrams a heap of times and think me and GHY have the same layout, just my diagram looks more complicated because it shows all 6 batteries installed. i'l do a full summary in a few days when it all turns up and i get started wiring it.

I edited my post, i understood but didn't explain it well. I just found these 2 chargers which may work well dual 400W (assuming each output is 200W at 10A) http://imaxrc.com/X400%20twins.html and even better same one as I was looking at but built in AC supply which I should be able to run on 240V to remove the need for a separate psu http://imaxrc.com/X200AC-DC.html

you are right though, it would be a hell of a lot easier to charge them all at once. 300W 10A 10s charger - $181 - would charge them all in 3hrs (exc balance) as 3 in Parallel in series (10s3p) 2 x 200W 10A 6s charger - $216 - would charge them all in 1.5hrs (exc balance) as 3 in parallel, (5s3p x 2 lots) 2 x 150W 7A 6s charger - $122 - would charge them all in 2.1hrs (exc balance) as 3 in parallel, (5s3p x 2 lots) question, when referring to balancing a battery, does it just balance all the cells in that battery to the same or would it balance all the cells in the charge group the same? also, when looking at the charger specs, does this mean I will only get 10A if inout voltage is 18V meaning if I sourced a 12V PSU it would be significantly less output? Operating voltage range: 11.0~18.0VDC Charge current range: 0.1~10A

thanks, appreciate the help. does that mean if i use a 150W charger and charge at 5s using a balance board so all 6 batteries charge parallel i would still get 7ah, how long would this take to charge all 6 batteries? 150W / 21v = 7.1A i'm set on the batteries, but selecting a charger or chargers is harder than I thought, still thinking of using 2 chargers, maybe 150W. I'm guessing if I sourced a PSU of >300W (or whatever the charger is rated for) I could use it for both chargers? or use a decent deep cycle battery with my standard car battery charger connected to it? thinking of using 2 of these, struggling to work out which one though HobbyKing™ X200 Touch Screen Smart Battery Charger 10A 6S V2 http://hobbyking.com/hobbyking/store/__58061__HobbyKing_8482_X200_Touch_Screen_Smart_Battery_Charger_10A_6S_V2_AU_Warehouse_.html Turnigy Accucel-8 150W 7A Balancer/Charger http://hobbyking.com/hobbyking/store/__15044__Turnigy_Accucel_8_150W_7A_Balancer_Charger_AU_Warehouse_.html HobbyKing™ ECO8 150W 7A 8S http://hobbyking.com/hobbyking/store/__15046__HobbyKing_8482_ECO8_150W_7A_8S_Bal_Dis_Cyc_Charger_w_accessories_AU_Warehouse_.html HobbyKing™ ECO6-10 200W 10A 6S http://hobbyking.com/hobbyking/store/__15045__HobbyKing_8482_ECO6_10_200W_10A_6S_Bal_Dis_Cyc_Charger_w_acc_AU_Warehouse_.html iCharger 106B-plus 250W 6s http://hobbyking.com/hobbyking/store/__45593__iCharger_106B_plus_250W_6s_Balance_Charger_AU_Warehouse_.html

here is the 10s battery I posted earlier, i was concerned with how long it would take to charge them all as one pack http://www.hobbyking.com/hobbyking/store/__45592__iCharger_1010Bplus_300W_10s_Balance_Charger_AU_Warehouse_.html also, I amended the diagram a little on the running side, this is a little simpler and should work?

as for chargers (initially 1 then 2) which of these would you select with AUD $140 max, want something that will give a fast charge Turnigy Reaktor 300W 20A 6S Balance Charger http://www.hobbyking.com/hobbyking/store/__54860__Turnigy_Reaktor_300W_20A_6S_Balance_Charger_AU_Warehouse_.html iCharger 106B+ 250W 6s Balance Charger http://www.hobbyking.com/hobbyking/store/__45593__iCharger_106B_plus_250W_6s_Balance_Charger_AU_Warehouse_.html or charge them individually HobbyKing 8482 Quattro 4x6S http://www.hobbyking.com/hobbyking/store/__19744__HobbyKing_8482_Quattro_4x6S_Lithium_Polymer_Multi_Charger_AU_Warehouse_.html I plan on putting the batteries in the fire bags connected to the balance boards then just charge them either in banks of 3 or banks of 6 - guessing this should be ok

Ok, just mapping together what I need (can't decide on 15ah or 20ah at this stage) thinking i'll end up with something like this 6 of these batteries (may add more later) http://www.hobbyking.com/hobbyking/store/__14653__Turnigy_5000mAh_5S_20C_Lipo_Pack_AU_Warehouse_.html XT90's for the charger and bike connectors http://www.hobbyking.com/hobbyking/store/%5F%5F32153%5F%5FNylon%5FXT90%5FConnectors%5FMale%5FFemale%5F5%5Fpairs%5FAUS%5FWarehouse%5F.html XT60's for battery loom connectors http://www.hobbyking.com/hobbyking/store/%5F%5F43416%5F%5FNylon%5FXT60%5FConnectors%5FMale%5FFemale%5F5%5Fpairs%5FGENUINE%5FAU%5FWarehouse%5F.html Red 8AWG wire for all positive cables http://www.hobbyking.com/hobbyking/store/%5F%5F41952%5F%5FTurnigy%5FPure%5FSilicone%5FWire%5F8AWG%5F1mtr%5FRED%5FAU%5FWarehouse%5F.html Charge pack x 2 http://www.hobbyking.com/hobbyking/store/%5F%5F18678%5F%5FLithium%5FPolymer%5FCharge%5FPack%5F25x33cm%5FJUMBO%5FSack%5FAUS%5FWarehouse%5F.html Parallel charge boards x 2 - will install XT60's on it http://www.hobbyking.com/hobbyking/store/%5F%5F44958%5F%5FParallel%5FCharging%5FBoard%5Ffor%5F6%5Fpacks%5F2%5F6S%5FBare%5FLeads%5FAUS%5FWarehouse%5F.html Low voltage alarms x 2 http://www.hobbyking.com/hobbyking/store/%5F%5F44925%5F%5FHobbyKing%5F8482%5FCell%5FChecker%5Fwith%5FLow%5FVoltage%5FAlarm%5F2S%5F8S%5FAU%5FWarehouse%5F.html I still need to source a good charger and 240v power supply - open to suggestions, want something good also, will it be ok to join the red wires like below using solder or should i use some fancy plug?

ok, getting a better understanding of it now. I knocked up this quick wiring layout for the bike running and also charging layout to give an easier understanding of the charging requirements and why the 5s is easier. correct me if they are wrong

OK, i've read this again and think i'll stick with he Lipo's like everyone else in here. here is a summary of what some guys are running, i'm deciding between the 6 battery setups listed below for my 36v bike. which one would be easier to charge? i'm interested in getting more run time rather than speed at this stage as my boys are still getting used to the bike and the touchy throttle thanks 2 - 9S 5800 - 33.3v - 11.6ah - 2 in Series 10 - 5S1P 5000 -37v - 25ah - 2 in Series x 5 Parallel 6 - 3SP1 8000 - 33.3v - 16ah - 3 in Series x 2 Parallel 6 - 5S1P 5000 - 37v - 15ah - 2 in Series x 3 Parallel

thanks for the replies guys, can you expand on this a little more? how long would a charge for one of these batteries take? what minimum voyage should I let the system get down too in use (i.e.: 30V) and is there a buzzer of something I could use for this warning? cheers

Mike you have me confused with the S, the ones why listed are 4S yet suitable for my 36V application. I think for ease I will just get 3 of these batteries for a start (may add another 3 later on) and not bother with the BMS http://www.hobbyking.co.uk/hobbyking/store/__14074__ZIPPY_Flightmax_8400mAh_4S2P_30C_LiFePo4_Pack.html%C2%A0 and get a new charger specific to these batteries, any suggestions on a decent charger as there seems to be lots of the HK site thanks guys

hi, i'm guessing 3 of these would suit my oset 16 36V or is there something better? to add BMS so i can just use the standard 43v charger, what parts do I need? the Earthx are going to cost over $900 delivered so looking to spend half that or so. I want something that gives good battery life and isn't too hard/PITA to charge up when required. if you had $500-600 to spend on batteries, charger and connectors, what HK parts would you order?