doesn't work on 2008 aluminum unibody Macbook

[sdedalus1]

FYI, doesn't seem to work on my 2008 aluminum unibody Macbook (with patched OS 10.12.6 High Sierra):
bclm read
gives
keyNotFound(code: "BCLM")

bclm read --version
gives
[0.0.4]

Meanwhile, I also tried OSX Battery Charge Limit and it returned the error

ERROR: SMC out parse failed
valid "  BCLM  [ui8 ]  60 (bytes 3c)"
current "  BCLM  [    ]  no data"

[zackelia]

Intel Macs without the BCLM key are unsupported.