Good point but you don't know how much faster it will degrade at 50 amps.
75% in 800, 500, 200 cycles, etc.
I would buy one and test it first.
On Thursday, April 16, 2020, 1:54:04 PM CDT, Michael Ross via EV
<[email protected]> wrote:
It is important to figure out what the #cycles means to you personally.
1000 cycles is a lot even daily - for some people.
On Thu, Apr 16, 2020 at 2:39 PM paul dove via EV <[email protected]> wrote:
> Cycle Life (retaining 70% capacity) at 20A Discharge, 100% DOD: >1,000
> cycles
>
> This tells me you don’t want to discharge at 50A if at 20A you are down
> 30% capacity in 1000 cycles.
>
> Sent from my iPhone
>
> > On Apr 16, 2020, at 4:25 AM, Lawrence Rhodes via EV <[email protected]>
> wrote:
> >
> >
> https://sfbay.craigslist.org/eby/ele/d/hayward-a-battery-cells-33v-2500-mah/7098505376.html
> >
> > Are these batteries a wise purchase? I am building it for a 40 amp 72v
> controller. This would be my first lithium build. I think I could bet by
> with one string of 21 but would 2 or three strings be wiser? I don't need
> the range just hill climbing. Since the batteries can put out 50 amps
> continous why spend more money unless the pack would last longer or be more
> durable. Just brainstorming here. What BMS etc.? Thanks Lawrence
> Rhodes...should I make a spot welder? Doesn't seem too hard.
> >
> >
> >
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Michael E. Ross
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