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Battery Pack Test
1. Remove the battery pack.
2. Measure the voltage at the battery contacts as shown
below.
+
-
T
If the voltage is not correct, charge the battery.
If the voltage is not correct after being charged,
replace the battery.
If the voltage is correct, suspect a short circuit or
failure in the computer. Go to the “Short Circuit Test”
on page 301.
Use the following procedure to check if the thermal
protection has tripped.
1. Measure the resistance with an ohmmeter between
the T and - contacts.
2. The resistance should not be open (infinity).
The thermal protection is detected when the
temperature exceeds 70°C to 80°C (158°F to 176°F).
Wait until the battery temperature becomes normal,
then verify the resistance at the battery terminals. If it
is open, replace the battery.
Contacts
Voltage (V dc)
+
+9.0 to +12.6
−
Ground
292
IBM Mobile Systems HMM - Volume 1
Summary of Contents for N51 Series
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Page 34: ...22 IBM Mobile Systems HMM Volume 1 ...
Page 55: ...Parts Listing 1 2 3 4 5 6 7 8 9 10 11 12 14 15 16 13 17 18 Model L40 SX 8543 43 ...
Page 83: ...Parts Listing 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Model N45SL 2614 71 ...
Page 114: ...Model N51 Exploded View continued 2 3 4 5 6 7 102 IBM Mobile Systems HMM Volume 1 ...
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Page 174: ...B D A C E F H G 162 IBM Mobile Systems HMM Volume 1 ...
Page 175: ...Model P70 P75 Exploded View continued A Model P70 and P75 8573 163 ...
Page 176: ...Model P70 P75 Exploded View continued B C 164 IBM Mobile Systems HMM Volume 1 ...
Page 177: ...Model P70 P75 Exploded View continued D E Model P70 and P75 8573 165 ...
Page 178: ...Model P70 P75 Exploded View continued F 166 IBM Mobile Systems HMM Volume 1 ...
Page 179: ...Model P70 P75 Exploded View continued G Model P70 and P75 8573 167 ...
Page 180: ...Model P70 P75 Exploded View continued H1 Model P75 168 IBM Mobile Systems HMM Volume 1 ...
Page 181: ...Model P70 P75 Exploded View continued H2 Model P70 Model P70 and P75 8573 169 ...
Page 184: ...Parts Listing P70 1 2 3 4 5 6 7 8 9 10 11 15 12 13 14 16 172 IBM Mobile Systems HMM Volume 1 ...
Page 194: ...182 IBM Mobile Systems HMM Volume 1 ...
Page 211: ...Exploded View 21 11 20 10 1 2 3 4 5 6 7 8 9 13 14 15 16 17 18 19 12 ThinkPad 300 2615 199 ...
Page 213: ...Parts Listing 1 2 3 4 5 6 7 9 8 10 11 12 ThinkPad 300 2615 201 ...
Page 216: ...204 IBM Mobile Systems HMM Volume 1 ...
Page 235: ...ThinkPad 350 Exploded View ThinkPad 350 PS Note 425 2618 223 ...
Page 236: ...ThinkPad 350 Exploded View continued 31 32 33 34 35 36 37 224 IBM Mobile Systems HMM Volume 1 ...
Page 262: ...ThinkPad 500 Exploded View 250 IBM Mobile Systems HMM Volume 1 ...
Page 265: ...Parts Listing 1 2 3 4 5 6 7 8 9 10 11 ThinkPad 500 2603 253 ...
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Page 290: ...ThinkPad 510 Exploded View 2A 13 14 15 2B 278 IBM Mobile Systems HMM Volume 1 ...
Page 294: ...Parts Listing 1 2 3 4 5 6 7 8 9 10 11 282 IBM Mobile Systems HMM Volume 1 ...
Page 295: ...Parts Listing continued 12 13 14 ThinkPad 510 2604 283 ...
Page 318: ...ThinkPad 710T Exploded View 306 IBM Mobile Systems HMM Volume 1 ...
Page 349: ...Parts Listing 1 2 4 5 6 7 2 3 3 8 Expansion Unit 3550 337 ...
Page 390: ...378 IBM Mobile Systems HMM Volume 1 ...
Page 398: ...Parts Listing 1 2 3 4 5 7 8 9 6 2 8 13 10 11 12 6 386 IBM Mobile Systems HMM Volume 1 ...
Page 445: ...Dock II 3546 433 ...
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Page 502: ...IBM Part Number 30H2356 Printed in U S A S82G 15ð1 ð1 ...
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