Basic electronics question powering a CR2025 remote with 2xAA
@cptwrench-g6lU9b
•
Oct 22, 2024
Oct 22, 2024
1.4K
Hi fellow engineers and tech-heads 😀
I recently got a remote for my digital camera due to the great number of repetitive shots I am taking with it, to be frank I was becoming concerned that I'd wear out the shutter button on the camera itself, that's somewhat besides the point... but true.
The only remote for my camera I could find (Samsung UK appear not to make or supply any remote units for their digital cameras at all!) is this unit:
It works, sends the right signal to the camera and allows a picture to be taken at a distance.
The problem is: the powersource, a slim 3V Lithium Cell, CR2025.
Due to the number of shots I know I'll be firing with this remote I want to modify the unit to be powered by 2xAA, batteries each AA is 1.5V rated so this should give the equivalent voltage right?
The reason is economy and capacity and environmental intelligence I guess. I want to be having to change batteries as little as possible and not to have to buy 360+ (!!!) CR2025 batteries a year.
Now you understand the situation and my aims, I'm wondering if you'd know of a way to carry this out so I don't fry the remote due to the larger potential current which can be generated by the AA cells?
The documentation that comes with the device and the spec. on the reverse of the unit mention only this about power requirements:
batt. supply: 3V
I know it is not simply a case of equating the voltages as when measured with an admittedly cheap multimeter the CR2025 had a max current output of around 0.14 Amps where the AA cell had 10 times this, or something along these lines. I remember there being a factor of at least 10.
For those reading this in countries where AA is not the std. name for this size or format of battery cell, then note:
"AA battery is a dry cell-type battery commonly used in portable electronic devices. An AA battery is composed of a single electrochemical cell.
The AA battery type was standardized by ANSI in 1947, and is designated E91 by DIN and,
AM3 by JIS
Internationally the IEC designated it as:
LR6 (alkaline),
R6 (carbon-zinc),
KR157/51 (nickel-cadmium),
HR6 (nickel-metal-hydride), and,
FR6 (lithium-iron-disulfide).
Other names include:
MN1500 and,
HP7
In China it is known as:
#5 battery
In Germany it is known colloquially as:
Mignon"
Thank for any advice pointers :smile:
I recently got a remote for my digital camera due to the great number of repetitive shots I am taking with it, to be frank I was becoming concerned that I'd wear out the shutter button on the camera itself, that's somewhat besides the point... but true.
The only remote for my camera I could find (Samsung UK appear not to make or supply any remote units for their digital cameras at all!) is this unit:
https://jjc.cc/products/rme9.htmIt is the RM-E9 unit by JJC Technology Co. Ltd.
It works, sends the right signal to the camera and allows a picture to be taken at a distance.
The problem is: the powersource, a slim 3V Lithium Cell, CR2025.
Due to the number of shots I know I'll be firing with this remote I want to modify the unit to be powered by 2xAA, batteries each AA is 1.5V rated so this should give the equivalent voltage right?
The reason is economy and capacity and environmental intelligence I guess. I want to be having to change batteries as little as possible and not to have to buy 360+ (!!!) CR2025 batteries a year.
Now you understand the situation and my aims, I'm wondering if you'd know of a way to carry this out so I don't fry the remote due to the larger potential current which can be generated by the AA cells?
The documentation that comes with the device and the spec. on the reverse of the unit mention only this about power requirements:
batt. supply: 3V
I know it is not simply a case of equating the voltages as when measured with an admittedly cheap multimeter the CR2025 had a max current output of around 0.14 Amps where the AA cell had 10 times this, or something along these lines. I remember there being a factor of at least 10.
For those reading this in countries where AA is not the std. name for this size or format of battery cell, then note:
"AA battery is a dry cell-type battery commonly used in portable electronic devices. An AA battery is composed of a single electrochemical cell.
The AA battery type was standardized by ANSI in 1947, and is designated E91 by DIN and,
AM3 by JIS
Internationally the IEC designated it as:
LR6 (alkaline),
R6 (carbon-zinc),
KR157/51 (nickel-cadmium),
HR6 (nickel-metal-hydride), and,
FR6 (lithium-iron-disulfide).
Other names include:
MN1500 and,
HP7
In China it is known as:
#5 battery
In Germany it is known colloquially as:
Mignon"
Thank for any advice pointers :smile:
