a1278: not charging, power on itself when connect to magsafe!

[phantomEVO]

please help me! macbook pro a1278 i7. motherboard 820-2936-a

a) it says "battery not charging" 61%

b) if i disconnect the power supply, it power off

c) with only the battery, it doesn't power on

d) when i connect the power supply (with or without the battery), it power on itself

e) the led of the power supply is always green

f) i have 5/8 led on the battery only if i connect the power supply

g) i've try to reset smc. but it doesn't work (led always green)

h) if i hold for then second power button, then i connect the power supply then i release the power button, it power on with fan at max speed, but the battery is not seen anymore

i) i've try to do all those thing with the motherboard outside the case and with anythign connected, it doesn't change, i've always the same problem

[dellxps15]

Re: a1278: not charging, power on itself when connect to magsafe!

i5 i7 model ?

i5-i7 model power on themself if battery not connected.

fan goes to max speed if palmrest not connected.

check u7000 voltage.

[phantomEVO]

Re: a1278: not charging, power on itself when connect to magsafe!

i5 i7 model ?

i5-i7 model power on themself if battery not connected.

fan goes to max speed if palmrest not connected.

check u7000 voltage.

really?!?!? so the problem could be the battery!!!

[dellxps15]

Re: a1278: not charging, power on itself when connect to magsafe!

b) if i disconnect the power supply, it power off

with battery only check voltage on white fuse near battery connector.

[phantomEVO]

Re: a1278: not charging, power on itself when connect to magsafe!

10,75v on each side of the fuse. if i push the power botton it drops to 3.92

[dellxps15]

Re: a1278: not charging, power on itself when connect to magsafe!

looks like a fault battery.

[phantomEVO]

Re: a1278: not charging, power on itself when connect to magsafe!

perfect, i will change it

could you give me some advice for a new battery? i will buy it from amazon, but i don't know which brands

[dellxps15]

Re: a1278: not charging, power on itself when connect to magsafe!

original battery is about 90-100€, while a compatible one is 40-60€. check just a good seller that offer 1-2 year warranty on it.

[phantomEVO]

Re: a1278: not charging, power on itself when connect to magsafe!

thank you for your help: i confirm that the problem was the battery

[phantomEVO]

Re: a1278: not charging, power on itself when connect to magsafe!

please help, the problem of powering on itself its the same:

brand new battery
as soon as i connect the power supply, mac boot up itself!!

another strange thing, the intitial charge of the battery was 87%, i've recharged it just an hour to reach up 100% when i've disconnected the magsafe it drops to 98% and now it is always at 98%!!

[phantomEVO]

Re: a1278: not charging, power on itself when connect to magsafe!

this is what coconut says about the new battery

[phantomEVO]

Re: a1278: not charging, power on itself when connect to magsafe!

but the problem still remain: as soon as i connect the battery, it power on itself

[dellxps15]

Re: a1278: not charging, power on itself when connect to magsafe!

do a smc and pram reset