I have this one after purchasing a "does everything model" that had a battery failure. The Chinese replacement battery was $150 from Canada and since it was a one hit wonder application, I chose to replace the whole unit with a more tied and true unit.
Here is what I have:
https://www.tooltopia.com/solar-jnc770r.aspx

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2005 X5 4.8IS
The Blue ones are always FASTER....

Current Garage:
2005 X5 4.8is
2002 M5 TiSilver
2003 525iT
1998 528i
Former Garage Stable Highlights
2004 325XiT Sport
1973 De Tomaso Pantera, L Model
1970 Dodge Challenger T/A 4 sp Alpine White
1970 Dodge Challenger T/A 4 sp GoManGo Green
1971 Dart Sport, “Dart Light” package
1969 Road Runner 383
1968 Ply Barracuda 340S FB Sea-foam Green