Wow, it’s been a minute since I last tuned into Canon Rumors — sorry guys — but I just saw this post and felt a full spectrum of emotions after reading it.
I suppose the best among them is ‘content’. For better or worse, I was among the first to post about this issue on Canon rumors, and perhaps my having taken that initiative — by seeking the experience of others, sharing my own experiences in a post, and eventually performing a methodical gear evaluation — may have played a contributing factor in identifying the need for this welcome news.
In the past, I have sometimes read on this forum that Canon doesn’t care what we think. Living in a market economy, I don’t hold that view. Moreover, in October 2023, I performed the following evaluation and sent my findings to Canon Canada. They valued my input, understood my frustrations, and repaired both my EL-5 flashes at no expense to me. While my repaired flashes now work well enough to put in my camera bag for paid assignments, I have changed my behaviour in using them, and the trust I lost in Canon's newest equipment has yet to be fully regained. As an aside, I also own and use a Godox flash system (AD400pro; AD1200pro), and to date I've never experienced any adverse issues (or wavering confidence) issues using that gear for paid assignments. Nevertheless, it appears Canon has taken responsibility here, and in my case, have sought to fix an issue that was observed by me and many others.
For those seeking to test their flashes, this was the methodology I used (inspired by some highly knowledgeable people in this forum), because at the time, I did not know if the problem was due to: a) my battery, b) my flash, c) or a combination of both. From this evaluation, I learned the fault that I was experiencing was most certainly being caused by something within the flash, and not the battery.
P.S., My second (control group) flash eventually became faulty a few months later, yet at the time of my first evaluation, it was working OK. So, whatever the issue was, in some cases it immediately impacts the flash unit, while in other cases it derives over time, or as some have claimed, not at all.
P.S.S., I regret not having shared this data earlier with you, as some life events impacted the ambition. Yet, I did share it with Canon, and with content perhaps it helped move the needle for everyone. A big thanks to the people who also run and positively contribute to this forum — having a place to share and learn from others with similar gear can make a difference.
Evaluation of my EL-5 Speedlite with its LP-EL battery
Tombstone data
| (Faulty) Flash #1 | Battery #1 | Purchase Date | Vendor |
Serial Numbers | 0200001431 | Date: 202210
07A1849 | July 28, 2023 | Vistek |
| | | | |
| Flash #2 | Battery #2 | Purchase Date | Vendor |
Serial Numbers | 0400000717 | Date: 202211
16A4069 | September 21, 2023 | Canon Canada |
The data in this table sought to see if the issue was with my flash
| Battery Capacity
(While Stored in Flash) | | | |
Battery Information
“Remaining capacity” | (Faulty) Flash #1 | (Faulty) Flash #1 | (OK) Flash #2 | (OK) Flash #2 |
| Battery 1 | Battery 2 | Battery1 | Battery 2 |
Fully charged – 0 hour | 100% | 100% | 100% | 100% |
2-hours later | 92% | 93% | 96% | 96% |
4-hours later | 80% | 81% | 95% | 95% |
8-hours later | 69% | 68% | 95% | 95% |
12-hours later | 57% | 58% | 94% | 94% |
16-hours later | 45% | 48% | 94% | 94% |
20-hours later | 32% | 36% | 93% | 93% |
24-hours later | 20% | 25% | 93% | 93% |
28-hours later | 8% | 14% | 93% | 91% |
32-hours later | 0% | 3% | 93% | 91% |
36-hours later | - | 0% | 93% | 91% |
40-hours later | - | - | 93% | 91% |
44-hours later | - | - | 92% | 91% |
48-hours later | - | - | 91% | 90% |
The data in this table sought to see if the issue was with my battery
| Battery Capacity
(While Not Stored in any Flash*) | | | |
Battery Information
“Remaining capacity” | Battery #1 | Battery #1 | Battery #2 | Battery #2 |
| Flash #1 Info | Flash #2 Info | Flash #1 Info | Flash #2 Info |
Fully charged – 0 hour | 100% | 100% | 100% | 100% |
12-hours later | 97% | 97% | 96% | 95% |
24-hours later | 95% | 95% | 95% | 95% |
36-hours later | 95% | 95% | 95% | 95% |
48-hours later | 93% | 93% | 93% | 93% |
* Battery placed in both flashes for gathering unique information, then removed.