deanoseadog
1 mW
Is anyone using the soft Lipo cells, like in RC planes etc. I have some in my RC car and plane and there performance is Soooo much better than the NiMH I had before. When I built my first eScooter I was interested in making a Lipo pack for it but the cost was still really high (3 -4 years ago).
But, I just had a look on ebay and found a place in HK selling RC packs with 4000maH cells that were rated at 15C burst, 10C continuous (i think RC idea of continuous is about 8mins), working out to about AUD$4.20 each cell and even with shipping to Aus, 48V 20Ah's worth of cells was only going to cost around AUD$550. Now I know that the equivalent ping battery is only US$770 and that includes a charger and BMS, but it seems that the BMS is the bottleneck for the current. So what if I bought HEAPS of these "cheap" lipo's, and a couple of balancing chargers could I really get a 48V 20Ah pack that can can supply 300A peak? I realise that without a BMS I run the risk of ruining a cell on discharge etc.etc. But at these prices I could get an extra 10A of battery and just leave a bigger safety margin with my "seat of pants" LV cut-off.
So basically what I'm wondering.....has anyone tried it? Willing to try it with their own money first?
C'mon I know you want to see my chopper go with 96V worth of Lipo's on board @ 12kg rather than 48V of Pb @ 30kg!
Ok just saw Ping packs for US$598. Better, but stil only 60A peak current.
But, I just had a look on ebay and found a place in HK selling RC packs with 4000maH cells that were rated at 15C burst, 10C continuous (i think RC idea of continuous is about 8mins), working out to about AUD$4.20 each cell and even with shipping to Aus, 48V 20Ah's worth of cells was only going to cost around AUD$550. Now I know that the equivalent ping battery is only US$770 and that includes a charger and BMS, but it seems that the BMS is the bottleneck for the current. So what if I bought HEAPS of these "cheap" lipo's, and a couple of balancing chargers could I really get a 48V 20Ah pack that can can supply 300A peak? I realise that without a BMS I run the risk of ruining a cell on discharge etc.etc. But at these prices I could get an extra 10A of battery and just leave a bigger safety margin with my "seat of pants" LV cut-off.
So basically what I'm wondering.....has anyone tried it? Willing to try it with their own money first?
C'mon I know you want to see my chopper go with 96V worth of Lipo's on board @ 12kg rather than 48V of Pb @ 30kg!
Ok just saw Ping packs for US$598. Better, but stil only 60A peak current.