Timeline for Arduino on battery getting unstable if temperature falls
Current License: CC BY-SA 3.0
11 events
| when toggle format | what | by | license | comment | |
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| Jan 26, 2015 at 14:07 | vote | accept | Stephan Noller | ||
| Jan 25, 2015 at 13:30 | answer | added | Omer | timeline score: 4 | |
| Jan 25, 2015 at 12:56 | comment | added | Omer | see instructions for 12Mhz bootloader here: ceptimus.co.uk/?p=102 | |
| Jan 25, 2015 at 12:28 | comment | added | Chris Stratton | In theory you could need to adjust the capacitors on the crystal, in practice it is likely to just work, especially if you can find the specs of the original and order something similar. But figure out how low the voltage is really dropping if loaded when cold - and consider if rising impedance may be a better model than dropping nominal voltage. | |
| Jan 25, 2015 at 11:31 | history | edited | Stephan Noller | CC BY-SA 3.0 |
added 541 characters in body
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| Jan 24, 2015 at 11:12 | answer | added | Robert Špendl | timeline score: 0 | |
| Jan 24, 2015 at 10:28 | answer | added | Unit_One | timeline score: -1 | |
| Jan 24, 2015 at 4:35 | comment | added | Milliways | As others have mentioned, most batteries have problems at low temperatures. In very cold conditions I used to keep batteries next to the body. You could test this by running in the freezer with the battery outside. | |
| Jan 24, 2015 at 3:02 | comment | added | j-g-faustus | AFAIK all battery chemistries have problems with cold: Capacity drops, current delivery drops, and internal resistance increases, so the voltage over your device drops. Not sure if a step up regulator would help, since the battery may still be too current limited in the cold. Perhaps an EE question? Not an expert, but I imagine a combination of more batteries and a regulator would help. | |
| Jan 24, 2015 at 2:02 | comment | added | Chris Stratton | Lithium chemistries may not like cold, so consider something else. Also make sure you clock is in spec for the voltage and that your brown out fuses aren't set high. | |
| Jan 23, 2015 at 19:20 | history | asked | Stephan Noller | CC BY-SA 3.0 |