White round light pulses on front of I book 4 no screen come on

Will not power on I book g4 fixed bad battery.

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0

crwdns2944067:02crwdne2944067:0:

Bad battery woin't stay charged for 1 second!!!!! Buy used battery.fixed!!!.

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

Fixed my own proublem.

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

crwdns2934285:0crwdne2934285:0