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Equipment For Sale FOR SALE new iSpindels - fully build and tested - £25 collected or £30 posted
- Thread starter ChrisPDuck
- Start date
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Paul7189
Regular.
Are these still available? I would be interested in two of them i can collect.
Interested too now I have a PET fermenter.
Cheers, Chris. Arrived today. Any recommendations for the battery?
Great :)
Something like this should be fine Samsung 25R - 18650 Battery - 2500mAh - 20A
However the prices seem to fluctuate quite a bit so as long as it's a flat top, 18650 cell, that weighs over 42g with 2500 to 3500mah capacity you should be fine. Lots of fakes about so use a reputable site (like www.nubattery.co.uk). Anything that claims a capacity over 3500mah is fake so ignore them!
PS this end is positive (+)
![20230810_135613[1].jpg](https://cdn2.imagearchive.com/thehomebrewforum/data/attach/86/86842-20230810-135613-1-.jpg "20230810_135613[1].jpg")
and this end is negative (-)
![20230810_135619[1].jpg](https://cdn2.imagearchive.com/thehomebrewforum/data/attach/86/86843-20230810-135619-1-.jpg "20230810_135619[1].jpg")
positive is at the top of the iSpindle (marked with a + ) and negative is at the bottom (marked with a minus - )
Make sure the battery goes in the right way round. If you get it wrong you'll get a cool magic smoke display... however it will only happen once and the iSpindel will likely not survive.
![20230810_135632[1].jpg](https://cdn2.imagearchive.com/thehomebrewforum/data/attach/86/86845-20230810-135632-1-.jpg "20230810_135632[1].jpg")
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![20230810_135613[1].jpg](https://cdn2.imagearchive.com/thehomebrewforum/data/attach/86/86844-20230810-135613-1-.jpg)
Paul7189
Regular.
Cheers for that. Do you need a charger too or can they be charged in place?
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The charger is built in. Unscrew the cap (but leave the board I'm place) and use the USB-C port on the top to charge it.
Red light means its charging, when it switches to blue its fully charged.
I'm finding that on my last few brews the battery runs down after a week or less. How long would you expect an iSpindel to be active from a full charge? And do iSpindel batteries have a shelf life? iSpindel was purchased under 2 years ago, October '21.
Agentgonzo
Landlord.
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I had an issue with mine in that the battery ran flat in 3 weeks. I got mine from gingerneil. He swapped it out for me and for my latest brew, it lasted 3 weeks and the battery only went down from 4.3V to 4V. I expect to get 2-3 full brews from a charge
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There's a lot of variables there.
1st, is your iSpindel using a genuine board (that supports deep sleep - if you purchased from myself it is but I don't recognise the username?)
2nd, do you have a genuine battery. This is tricky retrospectively but if the weight is about right, it's from a reputable seller and its a known make you're hopefully OK
3rd, how has rhe battery been treated?
Storing 18650 batteries fully charged is bad for them. If you don't plan to bree for a bit leave it turned on until it hits about 3.6v (fully charged is 4.2v)
Also cold crashing will be hard on the battery.
4th, how often are you logging data? This is configurable and the less often the longer it'll last.
5th, what was rhe batteries claimed capacity when new? I'd recommend between 2500mah and 3500mah (below 2500 isn't great quality and above 3500 is fake)
All theory said and done I treat my batteries like cr@p (prolonged crashing at 1°c, leaving them fully charged etc) and they should last 2 months with 15min logging (in theory, the longest I could find I'd left one on was 1 month and it was about halfway though). They are good 3500mah batteries though.
Hope that helps
Sounds like I need a new battery then!
1. I assume so? ... I got it through this forum if I recall correctly. The supplier was assetsolution.co.uk; it came fully calibrated.There's a lot of variables there.
1st, is your iSpindel using a genuine board (that supports deep sleep - if you purchased from myself it is but I don't recognise the username?)
2nd, do you have a genuine battery. This is tricky retrospectively but if the weight is about right, it's from a reputable seller and its a known make you're hopefully OK
3rd, how has rhe battery been treated?
Storing 18650 batteries fully charged is bad for them. If you don't plan to bree for a bit leave it turned on until it hits about 3.6v (fully charged is 4.2v)
Also cold crashing will be hard on the battery.
4th, how often are you logging data? This is configurable and the less often the longer it'll last.
5th, what was rhe batteries claimed capacity when new? I'd recommend between 2500mah and 3500mah (below 2500 isn't great quality and above 3500 is fake)
All theory said and done I treat my batteries like cr@p (prolonged crashing at 1°c, leaving them fully charged etc) and they should last 2 months with 15min logging (in theory, the longest I could find I'd left one on was 1 month and it was about halfway though). They are good 3500mah batteries though.
Hope that helps
2. ditto? (the supplier is still in operation)
3. I generally run it until it stops sending, then store it till the next brew and charge it up then. If the brew finishes before the iSPindel gives up, I'll turn it off and store it part charged.
I don't often do cold crash.
4. I never changed the defualt config. Transmitting every 15 minutes.
5. No idea. It came fully fitted and I don't know what battery was supplied. The supplier web site does not discuss the battery: iSpindel & Full Calibrated Bundle
Thanks for the comments though.
Another 2 posted out last week.
A handful more available if anyone wants any.
Also, to add, this will be the last batch from myself I'm afraid. Growing family means no spare time
A handful more available if anyone wants any.
Also, to add, this will be the last batch from myself I'm afraid. Growing family means no spare time
I've tried starting to calibrate mine, but have not been able to achieve 25° angle in 20°c water.
I measured the water with 2 thermometers and both were reading at 20, but the iSpindel was reporting back at 22.5°c. Can I assume the thermo probe in the iSpindel is more accurate than my thermometers?
The gubbins are as far down as they can go, but I can only get around 30° angle at the above temp. Surely the 2.5° temp increase wouldn't give a 5° angle increase. Do I need to add some ballast?
I measured the water with 2 thermometers and both were reading at 20, but the iSpindel was reporting back at 22.5°c. Can I assume the thermo probe in the iSpindel is more accurate than my thermometers?
The gubbins are as far down as they can go, but I can only get around 30° angle at the above temp. Surely the 2.5° temp increase wouldn't give a 5° angle increase. Do I need to add some ballast?
Hi Chris, I'll take one if they are still availableAnother 2 posted out last week.
A handful more available if anyone wants any.
Also, to add, this will be the last batch from myself I'm afraid. Growing family means no spare time
Have dropped you a PM. My old one has finally given up the ghost
Don't seem to have any messages from you.
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