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crwdns2934243:0crwdne2934243:0 mayer crwdns2934247:0crwdne2934247:0

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How to test battery and power adapter using multimeter?

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Replaced DC-in and DC-to-DC boards. Have new battery and new power adapter. Powerbook will not start.

It could be the new (cheap) adapter malfunctions. Last time I tried testing one, I discovered the circular metal thing on the outside is just a shield, whose purpose is to make poking multimeter probes at the tiny separated sections of the male pin about impossible without arcing! So, how can I test the adapter with a meter?

It could be the battery. I don't know whether they ship charged at all. Maybe my old one is fine! They have a connector with six conducting slots. I don't want to damage the battery or my meter. How do I test the batteries with a meter?

It could be I messed something up installing those boards, or maybe another part is faulty. I've already spent too much on these pieces! If the adapter or battery is faulty I can exchange them. If they're both fine, I'll dismantle the laptop to check my previous repairs for damage. Or I'll give up!

crwdns2866306:0crwdne2866306:0:

PowerBook G4 Aluminum 12"

crwdns2915684:0crwdne2915684:0:

open

crwdns2934251:0crwdne2934251:0:

+115879

crwdns2934241:0crwdne2934241:0 dzturbd

crwdns2947189:0crwdne2947189:0:

How to test battery and power adapter using multimeter?

crwdns2934249:0crwdne2934249:0:

Replaced DC-in and DC-to-DC boards. Have new battery and new power adapter. Powerbook will not start.

It could be the new (cheap) adapter malfunctions. Last time I tried testing one, I discovered the circular metal thing on the outside is just a shield, whose purpose is to make poking multimeter probes at the tiny separated sections of the male pin about impossible without arcing! So, how can I test the adapter with a meter?

It could be the battery. I don't know whether they ship charged at all. Maybe my old one is fine! They have a connector with six conducting slots. I don't want to damage the battery or my meter. How do I test the batteries with a meter?

It could be I messed something up installing those boards, or maybe another part is faulty. I've already spent too much on these pieces! If the adapter or battery is faulty I can exchange them. If they're both fine, I'll dismantle the laptop to check my previous repairs for damage. Or I'll give up!

crwdns2866306:0crwdne2866306:0:

PowerBook G4 Aluminum 12"

crwdns2915684:0crwdne2915684:0:

open