Replacement batteries for auto light reflectors. I've been keeping these as spares, but when I went to replace the batteries in my current reflector, the model number had changed. I have two. One I opened, intending to replace it. The other is unopened. Both have been stored at home for a long time, so please charge them fully in sunlight before use. Both were purchased at Yodobashi Camera. It seems they are now discontinued. For older type reflectors. Applicable reflectors: SLR100 (BF) SLR110 (BF) etc. Will ship with tracking.