Anglerfish 3.0 battery duration

Does someone know, how long the battery inside an Anglerfish 3.0 flash trigger will last?

I am using the trigger with rechargeable 3.0V/250 mAh LiFePO accus and the maximal use so far was three dives before replacement. I am interested to know, how long they would last before they really need replacement...

(The recommended, non-rechargeable, CR2 3.0V batteries have a capacity of 850 mAh)

Thanks, Wolfgang

24 minutes ago, Architeuthis said:

Does someone know, how long the battery inside an Anglerfish 3.0 flash trigger will last?

I am using the trigger with rechargeable 3.0V/250 mAh LiFePO accus and the maximal use so far was three dives before replacement. I am interested to know, how long they would last before they really need replacement...

(The recommended, non-rechargeable, CR2 3.0V batteries have a capacity of 850 mAh)

 

Thanks, Wolfgang

I can't answer your question, however the stated mAhr capacity of batteries should be taken with a grain of salt.  The CR2 is rated 800 mA-hr at 2V and your trigger may have cut out before then.  The rechargable CR2 - 15270 is their designation though the usage seems quite loose when searching for them.   I can't find much info on them but I found one source listing the cutoff voltage as 2.75V.  A discharge curve I found for energiser CR2 batteries shows it reaches 2.75V at about 500 mAhr.

1 hour ago, ChrisRoss said:

I can't answer your question, however the stated mAhr capacity of batteries should be taken with a grain of salt.  The CR2 is rated 800 mA-hr at 2V and your trigger may have cut out before then.  The rechargable CR2 - 15270 is their designation though the usage seems quite loose when searching for them.   I can't find much info on them but I found one source listing the cutoff voltage as 2.75V.  A discharge curve I found for energiser CR2 batteries shows it reaches 2.75V at about 500 mAhr.

Strange, the specs in Australia seem to differ from those im Austria: CR2 here is advertised as 3V/850 mAh (https://www.akkushop-austria.at/at/10x-duracell-photobatterie-cr2-ultra-lithium-3v-max.-850mah-cr15h270?gclid=CjwKCAjw46CVBhB1EiwAgy6M4hTRrHgZi3TM37RLG067AsS_iS4Gz72zF-dy4MZJ6BYjswHj4BtaGRoCzcQQAvD_BwE) and the RCR2, that I have, as 3V/250 mAh (https://www.akku500.de/Kamera-Akkus-Foto-amp-Video/Akku-fuer-RICOH-R1-Typ-CR2-3-Volt-Li-Ion-250-mAh?gclid=CjwKCAjw46CVBhB1EiwAgy6M4hOAtg8gIBCPbQj4vDqaelf8x_FiLvNpVuHbrSFUFdmV_EbvLUcMXRoCfe8QAvD_BwE)...

It seems, however, that the battery will last approx. three times as long as the accu, but how many dives is this?

Wolfgang

1 hour ago, Architeuthis said:

Strange, the specs in Australia seem to differ from those im Austria: CR2 here is advertised as 3V/850 mAh (https://www.akkushop-austria.at/at/10x-duracell-photobatterie-cr2-ultra-lithium-3v-max.-850mah-cr15h270?gclid=CjwKCAjw46CVBhB1EiwAgy6M4hTRrHgZi3TM37RLG067AsS_iS4Gz72zF-dy4MZJ6BYjswHj4BtaGRoCzcQQAvD_BwE) and the RCR2, that I have, as 3V/250 mAh (https://www.akku500.de/Kamera-Akkus-Foto-amp-Video/Akku-fuer-RICOH-R1-Typ-CR2-3-Volt-Li-Ion-250-mAh?gclid=CjwKCAjw46CVBhB1EiwAgy6M4hOAtg8gIBCPbQj4vDqaelf8x_FiLvNpVuHbrSFUFdmV_EbvLUcMXRoCfe8QAvD_BwE)...

It seems, however, that the battery will last approx. three times as long as the accu, but how many dives is this?

 

Wolfgang

I can't see anything different in those specs.  The point is it is specified at 850 mA-hr after it has given out 850 mA-hr the voltage has dropped to 2.0V.  However the rechargable CR-2 spec I found had 400mA-hr and reached 2.75V after it had put out the 450 mA-hr.    How much you get out of the CR-2 depends on the cutout voltage on the device you use it in .

so the point is comparing the mA-hr of batteries doesn't mean much without knowing the cutoff voltage that they are measured at.

1 hour ago, ChrisRoss said:

I can't see anything different in those specs.  The point is it is specified at 850 mA-hr after it has given out 850 mA-hr the voltage has dropped to 2.0V.  However the rechargable CR-2 spec I found had 400mA-hr and reached 2.75V after it had put out the 450 mA-hr.    How much you get out of the CR-2 depends on the cutout voltage on the device you use it in .

so the point is comparing the mA-hr of batteries doesn't mean much without knowing the cutoff voltage that they are measured at.

 

Now I see what you mean, thank you. It means that the RCR2 accu might last even longer than (roughly) 1/3 of the battery...

I wrote already to Anglerfish about the accus, but they did not respond so far...

Wolfgang