Old and New ... Battery

$ cat /proc/acpi/battery/BAT1/*
alarm:                   unsupported
present:                 yes
design capacity:         5184 mAh
last full capacity:      1423 mAh
battery technology:      rechargeable
design voltage:          10800 mV
design capacity warning: 518 mAh
design capacity low:     155 mAh
capacity granularity 1:  10 mAh
capacity granularity 2:  25 mAh
model number:            L08O6C02
serial number:            
battery type:            LION
OEM info:                SONY
present:                 yes
capacity state:          ok
charging state:          charged
present rate:            0 mA
remaining capacity:      1423 mAh
present voltage:         12436 mV

$ cat /proc/acpi/battery/BAT1/*
alarm:                   unsupported
present:                 yes
design capacity:         18558 mAh
last full capacity:      5184 mAh
battery technology:      rechargeable
design voltage:          10800 mV
design capacity warning: 1855 mAh
design capacity low:     556 mAh
capacity granularity 1:  10 mAh
capacity granularity 2:  25 mAh
model number:            L08O6C02
serial number:            
battery type:            LION
OEM info:                SONY
present:                 yes
capacity state:          ok
charging state:          charged
present rate:            0 mA
remaining capacity:      5183 mAh
present voltage:         12529 mV

Rasanya ada yang salah dengan design capacity baterai baru. Kondisi saat baru mulai diisi:

$ cat /proc/acpi/battery/BAT1/*
alarm:                   unsupported
present:                 yes
design capacity:         5184 mAh
last full capacity:      5184 mAh
battery technology:      rechargeable
design voltage:          0 mV
design capacity warning: 518 mAh
design capacity low:     155 mAh
capacity granularity 1:  10 mAh
capacity granularity 2:  25 mAh
model number:            L08O6C02
serial number:            
battery type:            LION
OEM info:                SONY
present:                 yes
capacity state:          ok
charging state:          charging
present rate:            2223 mA
remaining capacity:      2654 mAh
present voltage:         11637 mV

Mungkin ada bug di driver linux, yang muncul karena baterai digonta-ganti dengan cara cabut pasang tanpa power cycle.