This is a brand new Toshiba Satellite M640 and M645 battery. This Satellite M640 M645 battery is rated at 5200 mAh or 58 Whr. This is the highest rating available for a 6 cell battery pack. The higher the mAh rating, the longer your battery will run before it needs to be recharged again. There are no compatibility issues if your existing battery is rated at 4400 or 4800 mAh or a lower Whr.
When choosing a laptop battery, cheaper is not better. Cheaper batteries use inferior Chinese cells that typically wear out in just 3 to 6 months. The main indicators of inferior Chinese cells are the low price of the battery and a lower mAh rating. Inferior batteries also use inferior computer chip sets inside that can lead to compatibility issues with your laptop. Although every brand of laptop battery is hand assembled in China, the key to getting a great battery is knowing what components are inside.
Laptop Battery Express is a US based business with knowledgeable support staff to assist you before and after the sale. Yes, we have a phone number and real people answer your call! Free technical support is available if you need additional help in diagnosing power problems with your battery, ac power adapter or battery meter software.
Tech Specs
- Xtend brand
- 10.8 Volts-also compatible with 11.1 Volt systems
- 4400 mAh
- 6 Cell Li-ion (12 Cell Li-ion)
- Samsung (South Korea)
- Black
- 2 Year Warranty
- 30 day full satisfaction guarantee
- 300-500 recharge cycles
You can expect about 2 hours to 3 hours of run time with this Satellite M645 battery when new, depending on your energy use.
Replaces these Toshiba battery part numbers:
- PA3819U-1BRS
PA3817U-1BRS
C655
A665
L645-S4102
L645d
PA3817U
- PA3817U-1BAS
PA3817U-1BRS
PA3817U1BAS
PA3817U1BRS
PA3818U
PA3818U-1BAS
PA3818U-1BRS
- PA3818U1BAS
PA3818U1BRS
PABAS228
PABAS229
PABAS230
PA3819U
Toshiba Satellite A660 A660D A665 A665D C645D C650 C650D C655 C655D Battery
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