In 2010 I had surprising problems with replacement BLM-1 batteries
for my Olympus E-30. Since then I've been keeping records aimed at understanding battery problems. In
December 2013, I replaced the E-30 with an Olympus OM-D E-M1, and the
original records for the E-30 are now here. This
page relates to the BLN-1 batteries
for the E-M1.
There's a difference in the market between the BLM-1 and BLN-1: the Olympus battery charger
for the BLN-1 only supports coded batteries, and many of the replacements on the market
can't be charged with that charger. Instead, they're supplied with their own charger. I
don't know if this raises any quality issues, but it seems reasonable to assume that the
suppliers of the coded batteries have gone to more trouble, and so are less likely to cause
problems. Based on this and my experience with the E-30, I have bought a set of three coded
BLN-1 replacement batteries.
The batteries
My current batteries are
Number |
|
Date |
|
End date |
|
Comment |
1 |
|
3 December 2013 |
|
|
|
The original battery supplied with the E-M1. |
2 |
|
17 December 2013 |
|
3 April 2022 |
|
One of the first set of three replacement batteries. |
3 |
|
17 December 2013 |
|
|
|
One of the first set of three replacement batteries. |
4 |
|
17 December 2013 |
|
15 July 2022 |
|
One of the first set of three replacement batteries. |
5 |
|
27 July 2022 |
|
22 August 2022 |
|
Replacement for dying 1-3 |
6 |
|
26 August 2022 |
|
|
|
Replacement for dead 5 |