Just had some weirdness happen. Had a Promaster EN-EL3e fail completely and without any warning. Used it a month ago and it held a full charge, and was rated as 'new' by the nikon battery status monitor thing. Now it won't hold enough charge to turn on the camera (D300).
This was a fairly low used battery, and not subjected to any harsh conditions. Ive never had a lithium ion battery fail like this. Anyone experience a sudden and total battery failure?
Glasgow, Scotland, United Kingdom
Lithium Ion batteries tend to fail very suddenly rather than declining gradually. I've had that happen a few times, with Canon and independent makes. I've also seen it with phone batteries. They seem to be performing normally one day and will not hold a charge the next.
I don't know what sort of "special sauce" Nikon uses in their OEM batteries, but the 2 third-party batteries I've used have problems of one sort or another, while Nikon OEM batteries haven't had any issues (including 8-year-old EN-EL3 batteries for my D70). The only time my D70 locked up on me was with a third-party battery. I got rid of it, and haven't had a problem with my D70 since. For my D300 I purchased a 2000 MAh third-party battery, which should have lasted LONGER than the Nikon 1500 MAh EN-EL3e. Never did. Currently (2 years old) it won't hold a full charge and I have it strictly as a backup (originally I rotated between the OEM and third-party batteries).
I avoid 3rd party batteries from little known online store. I bought an 3rd party battery with my 20D in 2005. I noticed no difference compare to Canon's battery today. It still works fine just like my other Canon batteries. I try to keep all batteries at full charge all the time.
I bought some dirt cheap phone batteries from some Amazon sellers, they all failed in a few months. Lesson learned.