SD-9 battery knockoffs on eBay. Any good?
I've just purchased an SB-900 and am looking to get the external battery pack SD-9. Did a search on eBay and came across knockoff SD-9's from China at just under half the price. Does anyone have any experience with these units, which are for sale by a half-dozen eBay sellers? I don't want to risk hurting my flash, but am keen to save more than $100 if i can.
All experiences welcome, either good or bad.