Re: LF1 has NON-STANDARD USB port!
Actually, I take that back (on my previous post) I guess the Monoprice one might work and they just have some really old models listed under the compatibility details (Panasonic might've stricken them all to keep their more up-to-date list manageable)... The Bestbatt list (linked below) for their own cable seems to fall somewhere in between and actually has models found on both of those other lists.
This is what I'm getting at tho, Panasonic's made this way more confusing than it has to be. Even if you ignore the fact that it's a special cable, they could at least name the connector or pin configuration something short and sensible (like Nikon does) so that's easy to identify. Instead they have all these cable model numbers that just add to the nonsense, I guess they might correspond to length or production run or who knows what...
Bestbatt lists like three or four Panasonic generated model numbers for the cable, none matches the one in the LF1 manual... Apparently Monoprice just gave up on that long ago and they describe it simply as Mini B 8-pin, even tough it's clearly not mini A nor B (if anything it's micro sized, smaller actually) and it doesn't even have 8 pins! lol I count 5 pins on my LF1's cable,with some blank space (enough for 7 total, maybe).
I guess it's possible other cameras use a different set of pins or maybe the extra possible pins are only used by the AV cable; or it could mean that this exact pin count/config on the LF1's cable signals the camera for a specific charge current/speed (like the two bridged center data pins signal 1A charging for most Android phones, whether bridged on the cable or charger). Again tho, who knows! Thanks Panasonic...
I think I'm ordering the retractable one off B&H, I'll post back how many actual pins I see on the thing and whether I notice any difference in charging speed between it and the one that comes with the LF1 itself (which has the two outer-most pins and then 3 clumped to one side). I assume it's never changed so I imagine it'll be identical to all the other ones, unless Panasonic has some data only cables and some data + power cable, ugh...