05-22-2023, 11:25 PM
I coukld not find the protection specs for my thrunite protected 18650, but assumed it was a 2.5v LVD.
I put one fully charged orbitronics, the thrunite, and an unprotected panny cell into the 3s 18650 holder, and powered the jaro fan through a wattmeter. Dialed it uoto abiut 0.5 amps at 12.03v.
Right around the 4 hour mark, i saw voltage quickky falling from 8.33.
I tested each cell individually under load, and they were all close, but the unprotected panny was lowest, and when it fell below 2.47 i said screw it, and went to unplug the anderson powerpoles between fan and wattmeter, when the wattmeter went dark.
The orbitronics LVD protection circuit kicked in, and the battery read 0.00v. The other 2 batteries, with load removed were 2.7v range and climbing.
The orbitronics cell in my thrunite C2 charger started accepting 1.56 amps.
So Conclusion.
The 3 series 18650 holder will work as a pocket fan 12.6v max battery, but each cell should be a protected cell with its own LVD.
My orbitronics cells are 9 years and 5 months old. The panasonics a little older. They seem to have about 2150 of their original 3400 mah capacity, remaining.
They powered the jaro fan at 0.5 amp load, for 4 hours, though that had i creased to 0.85 amos when bTtery voltage fell to the mid 8 range.
The compact pocketfan idea is basically never going to require long term use. New 18650 cells would perform far better, the 2.0ah 18v ridgjd battery, even more so, and the 4.0 Ridgid battery is still pocketable too, but the 3 cell holder is way smaller and lighter than the ridgid baTtery
I would have ai.ed fan at fiona belly on todays walk, if i had it. She will stopand seek shade wellbefore the tongue starts hanging low.
I would have finshed fan earlier but need a worktable inside a conditioned soace.
The garage is too fvking hot ezpeciLly with recently driven car inside
The 2k ohm pots arrived. The one i tested read 2167 ohms dialed all the way up.
The cheap 3S holder drops so much voltage, i ordered a better one, with thicker brass contacts bridging battery contacts.
I put one fully charged orbitronics, the thrunite, and an unprotected panny cell into the 3s 18650 holder, and powered the jaro fan through a wattmeter. Dialed it uoto abiut 0.5 amps at 12.03v.
Right around the 4 hour mark, i saw voltage quickky falling from 8.33.
I tested each cell individually under load, and they were all close, but the unprotected panny was lowest, and when it fell below 2.47 i said screw it, and went to unplug the anderson powerpoles between fan and wattmeter, when the wattmeter went dark.
The orbitronics LVD protection circuit kicked in, and the battery read 0.00v. The other 2 batteries, with load removed were 2.7v range and climbing.
The orbitronics cell in my thrunite C2 charger started accepting 1.56 amps.
So Conclusion.
The 3 series 18650 holder will work as a pocket fan 12.6v max battery, but each cell should be a protected cell with its own LVD.
My orbitronics cells are 9 years and 5 months old. The panasonics a little older. They seem to have about 2150 of their original 3400 mah capacity, remaining.
They powered the jaro fan at 0.5 amp load, for 4 hours, though that had i creased to 0.85 amos when bTtery voltage fell to the mid 8 range.
The compact pocketfan idea is basically never going to require long term use. New 18650 cells would perform far better, the 2.0ah 18v ridgjd battery, even more so, and the 4.0 Ridgid battery is still pocketable too, but the 3 cell holder is way smaller and lighter than the ridgid baTtery
I would have ai.ed fan at fiona belly on todays walk, if i had it. She will stopand seek shade wellbefore the tongue starts hanging low.
I would have finshed fan earlier but need a worktable inside a conditioned soace.
The garage is too fvking hot ezpeciLly with recently driven car inside
The 2k ohm pots arrived. The one i tested read 2167 ohms dialed all the way up.
The cheap 3S holder drops so much voltage, i ordered a better one, with thicker brass contacts bridging battery contacts.
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