Originally submitted at Adorama
Adorama Replacement Rechargeable Lithium Ion Battery for Leica BM8 Digital Camera Battery, 3.6 Volts, 2000mAh.
Adorama Replacement Battery Leica BM8
Pros: Reliable, Good price value, Long-Lasting
Cons: Doesn't Fit Camera Well
Best Uses: Travel, Portrait Photography, Photography, Digital Photography
Describe Yourself: Photo Enthusiast
Was this a gift?: No
This is a much better battery than the cheapo replacements for you find in auction sites for less, those shipped from some obscure warehouse in HK or China.
I bought this one as a second battery to carry for my M8. It is well worth the price, I have not seen any capacity difference to the original Leica Battery No 14464, so why would one pay much more for the original?
There is only possible reason why you might want to consider the original: The 'real' Leica battery fits perfect into the M8 body (little surprise here) while the Flashpoint(?) brand replacement fits a little too tight, but I am happy to put up with this.
(legalese)