What AA or AAA battery should I use for industrial applications?
I recently got a set of warning lights for car adventures. Like a chemical flare light but these LEDs run on batteries.
It was probably a stupid idea. Deleted paragraphs here about the risk/reward balance of attempting field repairs by the side of the road.
However, it did get me thinking about the longevity and safety of AA and AAA batteries in a device that needs to be kept in the car.
We get freezing winters, and direct sunlight in the summer will strike you down. (American Southwest mountain state.)
What's the best battery for a digital tire gauge that I keep in the glove compartment?
Should I keep it in the trunk instead? The worst of the summer heat is made worse by the greenhouse effect of the car's interior.
Yes, I should use an analog pressure gauge that works without batteries. I also carry one of these. The digital one is easier to use and generally gets the same readings as some more expensive, less portable test equipment.
LiFePo4 + dummy is the best solution when there are 2 AA-batteries in series.
Mostly because of 10000 charge cycles instead 500 of NiMH.
Capacity is about %70, when we compare the bestest batteries.
--- Correccion: LiFePo4 is better, but good batteries are very expensive. Also flat voltage curve extends usable capacity.
Only problem is that when LiFePo4 is totally emptied it easily dies and so protected version may be worth the price.
While I am all for the free market, making disposable battery companies label the estimated MAH on batteries would be a win-win in so many ways. For consumers, the environment, waste management, etc...
The alkaline discharge curve slopes dramatically, so those batteries provide dramatically different voltage when new vs used. Devices may or many not work at lower voltages so any battery life is difficult to estimate.
Rechargeables provide a very flat discharge curve, providing mostly the same voltage, so the steep drop off clearly signals the battery life end.
What AA or AAA battery should I use for industrial applications?
I recently got a set of warning lights for car adventures. Like a chemical flare light but these LEDs run on batteries.
It was probably a stupid idea. Deleted paragraphs here about the risk/reward balance of attempting field repairs by the side of the road.
However, it did get me thinking about the longevity and safety of AA and AAA batteries in a device that needs to be kept in the car.
We get freezing winters, and direct sunlight in the summer will strike you down. (American Southwest mountain state.)
What's the best battery for a digital tire gauge that I keep in the glove compartment?
Should I keep it in the trunk instead? The worst of the summer heat is made worse by the greenhouse effect of the car's interior.
Yes, I should use an analog pressure gauge that works without batteries. I also carry one of these. The digital one is easier to use and generally gets the same readings as some more expensive, less portable test equipment.
Can't go wrong with the IKEA Nimh rechargeables IMO. They don't leak like alkalines and probably less prone to oopsies than Li-ons.
The 1950 mah ones allegedly have a lower self-discharge when idle than the higher capacity ones but idk if it makes much of a difference in practice.
eneloop rechargeables have always done well for me.
Also a video:
https://youtu.be/bQ_tGjXm0Ng
The overall recommendation for an AA battery comes at 7:30.
It's the only one I buy, the white Panasonic eneloop.
LiFePo4 + dummy is the best solution when there are 2 AA-batteries in series.
Mostly because of 10000 charge cycles instead 500 of NiMH.
Capacity is about %70, when we compare the bestest batteries. --- Correccion: LiFePo4 is better, but good batteries are very expensive. Also flat voltage curve extends usable capacity.
Only problem is that when LiFePo4 is totally emptied it easily dies and so protected version may be worth the price.
While I am all for the free market, making disposable battery companies label the estimated MAH on batteries would be a win-win in so many ways. For consumers, the environment, waste management, etc...
Yeah, the rechargeables always do but not most single use, kind of weird that way.
The alkaline discharge curve slopes dramatically, so those batteries provide dramatically different voltage when new vs used. Devices may or many not work at lower voltages so any battery life is difficult to estimate.
Rechargeables provide a very flat discharge curve, providing mostly the same voltage, so the steep drop off clearly signals the battery life end.
Old test - https://www.redferret.net/the-surprising-truth-behind-househ...