I have nowhere safe to charge Lipo in winter.
I got my LiPo packs inside LiPo bags which are inside a sentry cash box made out of metal so fire is not an issue just smoke which is very hazardous indoors but I do have an enclosed front porch with a window and fan blowing air out so I can charge them there as there are two doors separating the front porch from the main living area.
Those Turnergy packs have lasted quite awhile and still have some life I think. I have always wanted two 10S Multistars though. I switched to 18650 packs and have a 6P - 10S , and two 4P - 10S packs and all do run well however none will match the performance of 12S LiPo. I also have two 6S - LiPo chargers so am not ready to give up on them yet.
Awhile ago I bought two pair of cheap brand name 6S packs. two 10.0 and two 8.0s. I should have listened to the advice I got against that decision. My friend downstairs attempted to take apart a couple of those old defective puffed up unstable Lipo packs which I put outside in the garage. He gave up after one started sparking really bad but there still was no fire. Therefore I think it is safe to say that the old ones I have as well as brand new Multistars will be safe to run and charge. Turnegy or Multistars are the only LiPo brands I would order though. Thanks.
No LiPo Shoot
I was talking to my downstairs neighbor about the old defective LiPo packs I asked him to take apart awhile back. The deal was a beer for each one he got separated. I was going to try and make two 5S packs from two 6S packs by finding the bad cells.
It was hilarious listening to him tell the story last night when drinking a bottle of gin.
He said the first two came apart no problem and then it was like the forth of July. Sparks everywhere. It scared the shit out of him.
That was the exact reason I did not want to do it. I asked "What did you end up doing with them" His reply was "I got a Hazmat suite and a lawn rake and a garbage can and threw them in the garbage"
The only LiPo packs I have left are the old ones Dan sent me which are in storage. Unfortunately one of the balance plugs came disconnected.
They are still combined as two 10.0 Ah packs but two of the 5.0 Ah packs need the balance plugs re-connected and it is something I have been procrastinating with, It will be a huge spark and probably a burnt plug. I know that there was a big spark before and when I asked for advice on how to prevent that I never got an answer. Please let me know.
I got the old LiPo packs from storage. I am cleaning out the front porch today and getting rid of a lot of junk and will then charge each of the four 5.0 LiPo packs separate. DA told me to combine them into two 10.0 packs but I am done with sparking balance plugs because a couple of cells are .01 to .04 volts off.
Also when dealing with older packs which have sat around about a year or so they need to be balance charged separate in my opinion as combining them could hide a bad cell if a good cell is charged in parallel with a defective cell. However I would be surprised if I found a bad cell in these packs as the packs are of superior quality to all other LiPo brands except maybe Multistar.
I would definitely buy these or Multistar in the future and do indeed plan on doing so. I am no longer scared of LiPo. I was when I first started but now days am only afraid of taking them apart. Hooking the power wires in parallel or in series I use a pre hook up cable with two resisters. I just do not like hooking up the Y balance plugs.
I could go to the trouble of creating a pre- hook up balance cable using six resisters but that would be a waste of time as I do not run these packs often and when I replace them will be ordering two 6S - 10.0 or 12.0 Multi-stars so will not need to combine balance wires.
I will be BALANCE charging and combining all four 6S - 5.0 packs in parallel series for 12S at 10.0 Ah tonight. I will be running them with the new build I just did and then the 20" BMX Turbo with the dual motors for the video climbing Crane st. hill from a dead stop at the bottom. Thanks.
Another trip downtown with the new build.
Pedal assist up the hills but that was what the build was intended for. I pedal assisted with Easy Street also. Those motors are both small so not intended for steep hills. A little exercise wont hurt me.
I still have not charged up the old LiPo but am looking forwards to accomplishing that tonight. I just want to see the difference in power with the 12S Lipo compared to the 18650 packs.
I am not sure which 18650 packs are the strongest but I do know which are the weakest. That would be the SONA packs 4P. Those were my first 18650 packs and have been ran the longest.
I have been running the 6P Samsung packs for easy street and this new build but believe it or not the LG cells which I built with those cheap plastic caps which were two 6S in parallel and then after melting the caps I rebuilt them with a BMS for 10S @ 4P.
Basically the 4S LG pack runs neck and neck with the 6P Samsung pack. Capacity wise and power wise.
The new motor definitely runs about 6 to 8 mph slower than the front 700c motor. Also I have ruled out lower gearing as the reason as Easy street can climb hills better also and is a front motor compared to rear. Same size motor both rated at 500 watts.
My solution is 12S LiPo if the 36 volt controller can work with it. I would NOT hook up 12S Lipo to Easy street as I believe Easy Street to be a 27 mph bike with 10S Lion on the flat compared to a 19 mph bike which is my new build. LiPo should get it real close to Easy Street in top speed and hill climbing ability. Thanks.
I got a brand new tube and tire for Easy Street. I picked up a nice Dimondback for 10 bucks the other night. The guy promised me it was not stolen. It was Christmas eve. He says he wants to sell me a Ross Mountain bike and a Shwinn BMX for 10 bucks Friday. I am also building a Specialized 26" mountain bike for my friend downtown.
I want to order two REAR 1,000 watt direct drive motors. One for the Clear Creek Schwinn and another for my Schwinn Ranger. The Clear creek has the 1,000 watt front motor Sunder sent me. When I get to Ohio I am going to get the wheel fixed and am putting it on the Haro V3. The Clear Creek will go to John. Marys son. He has wanted it for awhile but did not want to part with the motor Sunder sent. The Haro V3 is one of my favorite bikes so that will be perfect for the motor Sunder sent if I can get the rim fixed.
The old LiPo packs are charging now. My latest build will be getting 12S LiPo to the rear geared hub motor soon. I should get a lot better performance out of it. I will get a speedo. for that and Easy Street. Thanks.
Also looking at a PC upgrade. An I5 4670K haswell and an 1150 motherboard. That processor is the best bang for the buck. I was looking at a FX 8350 eight core but when I looked up the benchmark vs the I5 I changed my mind quick. The I5 is much better for the same price.
https://cpu.userbenchmark.com/Compare/I ... 1538vs1489
The 4690k is not as good as the 4670k. Haswell is better architecture than the haswell refresh in the 4690k devils canyon and 84 watts vs 88 for the Devils canyon. The 4670k is a more stable CPU to overclock also. It runs cooler and beats a lot of I7 processors.
https://cpu.userbenchmark.com/Compare/I ... 2432vs1538
https://cpu.userbenchmark.com/Compare/I ... 2293vs1538
I would like DAs and Sunders and Dans opinion on that I5 processor. It has Intel burn technology. It is what Doug is running in his machine and overclocked it to 5.6 gig without blue screen running custom liquid cooling. It is 3.4 gig and will turbo to 3.8 out of the box. I might run liquid cooling but 4.2 gig should be enough to overclock. Anything more than that would be abusing the CPU I think. Thanks.
12/27/18. 5:46 AM
Easy street is back on the road. I bought a new tire and a bell tube. I could not use the tube as it has a presta valve and the rim takes a schrader tube so I used the tube from the 700c Dimond Back and I put the 27.5 inch wheels from the new build on the 700c DimondBack. They were originally on the new build but the e bikeling kit was 26 inch so I found a home for the 27.5 inch wheels. I just need disk brakes now.
Also I am almost finished balance charging the fourth 5.0 Turnegy LiPo pack. The old packs Dan sent. I was 100% correct in charging them separate as one of the balance plug extensions had a wire unhooked. The two balance extensions both were plunged into a Y balance wire. the balancer and charger could have missed that as it would have been in parallel with a cell from the other pack.
I am about to hook the power wires in parallel for two 6S - 10.0 packs and then hook them in series for 12S LiPo. I wont be hooking the balance wires in parallel ever again. These packs are old and maybe have a few more good runs left in them. I can deal with charging each pack separate. That way if I do get a bad cell it will not go unnoticed. They will be replaced with 10.0 or 12.0 Multistars. Maybe even 16.0 or 20.0 if there is a big sale and I run into some $$$$$ in Ohio.
I will be hooking the LiPo packs up to the new build soon. thanks.
I am heading down now to hook up the LiPos to the new build. I will have Doug shoot a video. (see bottom pic) Then am heading down to the 24 hour beer store with the Currie and the 6P - 10S - 18650 pack as the Currie has a basket. I am sick of carrying 20 beers in a back pack. Thanks.
I build e bikes. There not always pretty or practical but sometimes they work, at least for awhile. Immortality is not a dream but the future of our evolution. We were given the tools to forge our own destiny. We were created in gods image and shall evolve to live forever.