My battery is telling me to have it serviced according to Mac OS X HIGH SIERRA THE BATTERY IS NOT HOLDING ENOUGH CHARGE IN THIS STATE APPLE SAYS IT CAN GO UP TO 1000 CYCLES WITCH IS TEN YEARS AT FULL 6900 MAH CAPACITY AND IS UNDER THE 250 CYCLE THRESHOLD BUT IM WORRIED BECAUSE IT'S LOSSING CAPACITY AND ITS AT 58% OF THE ORIGINAL CAPACITY AND DROPPING right now I can't afford to replace it so I'll keep updating this and should I get the funds to replace it I will go with an NIMH REPLCEMENT OF THE SAME CAPACITY BECAUSE THEY HAVE LONGER LIFE THAN LIPO ONES.