Error when compiling in Arduino IDE

[daniel1979]

Arduino:1.6.9 (Mac OS X), Kort:"Pro Trinket 3V/12MHz (USB)"

Battery.c:8: error: variable 'Battery' must be const in order to be put into read-only section by means of 'attribute((progmem))'
uint8_t Battery[] PROGMEM={
^
exit status 1
variable 'Battery' must be const in order to be put into read-only section by means of 'attribute((progmem))'

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[alfadex]

did you find any solution for this?