> >Need to draw 18 Amps from a 36 v battery.
> >
> >For 5 minutes.
> >
> >2 lugs in a brine solution?
> >
> >Drive rebar into the ground?
> >
> >
> Well, that's 2 Ohms, 648 Watt.
Not sure if the sprinkler system is de facto flood irrigation or not. Probably get pretty good current with all the Ca and Na in lower Colorado River water.
> Brine works, although you must measure the Amps
> and regulate the electrodes manually.
Meter only goes to 10 amps so play with that then extrapolate off when the 15 amp fuse blows.
Is this an inverse square relation with distance?
If concentration is linear if may be easier to 3X the salt of 6.7 amps.
> Make sure not to short circuit the current.
Two 15 amp fuses in parallel.
> One bucket of water, 10 liters,
I might use something taller to accommodate the rods.
> and 1/4 Kg of salt.
Get $1.25 of Na salt as I'm not going to waste $3 of lite salt on this project.
> 40 cm of aluminium rod electrodes.
The two Al angles happened to be 1 m away cluttering the desk, one 35 cm and one 40. I may cut the test after 2 min if they corrode too much. I'm a great believer in useless clutter.
> Starter cable of the Olde Times, not the Chinese ones.
I'll just use the 4 X 16 AWG I use for the spot welding rig. In 2 years I'll replace the cells again so I'm not going to ruin my cables.
> Done this a 1000 times.
Thanks.
The 40 new cells were left over from a 7p X 10s cut to make a 3p range extender and were sitting for 7 months. They are now are all at 32 v. I'll charge up half way with the BMS attached then discharge test a minute w/o BMS. Then 5 minutes with BMS.
The bike stays out doors until after several charge cycles.
I stopped by the Glamis Store asking if I could use their outlet to recharge.
"We are not responsible if your bike burns up."
They didn't care if if the ebike burned their wooden store down, just getting sued.
It took awhile to realize they got sued everytime anyone flips a dune buggy.