Charger Toshiba Laptop
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Universal AC Adapter/Power Supply/Charger Cord for Toshiba Laptop 90w |
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Switchable Voltage Options: DC15V 6A(MAX) DC16V 5.6A(MAX) DC18V or 18.5V 5A(MAX) DC19V or 19.5V 4.7A(MAX) DC20V 4.5A(MAX) DC22V 4.1A(MAX) DC24V 3.8A(MAX) Power Max: 90 W DC plug-in Connector: 9 tips Tip A - 6... |
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Laptop battery Charger for Toshiba Satellite A205-S5000 |
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Compatible Part Numbers: Toshiba Satellite A100 Series: A100-151, A100-163, A100-188, A100-209, A100-259, A100-295, A100-500, A100-507, A100-508, A100-521, A100-522, A100-523, A100-525, A100-533, A100-570, A100-649, A100-S2211, A100-S2211TD, A100-S3211TD, A100-S8111, A100-S8111TD, A100-SP2022, A100-SP621, A100-ST2311, A100-ST3211, |
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Laptop Notebook Charger for 19V 3.42A TOSHIBA V85 N193 - 19V 3.42A Adapter Adaptor Power Supply "Laptop Power" Branded (Power Cord Included) |
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Brand new "Laptop Power" branded laptop charger - 12 month warranty - immediate dispatch |
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LAPTOP AC POWER ADAPTER CHARGER FOR TOSHIBA 15V 5A 3.0MM PA3283U-1ACA PA3283U... |
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NEW. Ac Adapter for Toshiba with LED indicator. Input: 100V-240V Output: 15v 5A. Compatible with Adapter Toshiba Model Number: PA3283U-1ACA PA3283U-2ACA PA3283U-3ACA PA3283U-5ACA PA3083U-1ACA PA3201U-1ACA PA3215U-1ACA PA3469U-1ACA... |
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Laptop/Notebook AC Adapter/Power Supply Charger+Cord for Toshiba Satellite A100 A110 A135 A135-S4527 A135-S4656 A135-S4666 A135-S7404 A200 A205 A215 A85 L25 L25-S119 L25-S1192 L25-S1193 L35 M115-S1061 M35X P205 a135-s2246 a135-s2276 a135-s7403 |
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Compatible Models/PN: Toshiba Satellite A100 A110 A135 A135-S4527 A135-S4656 A135-S4666 A135-S7404 A200 A205 A215 A85 L25 L25-S119 L25-S1192 L25-S1193 L35 M115-S1061 M35 |
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Question from a reader: "How many cells are in the Toshiba Satellite M105-S3041 Laptop Battery? The battery is for a Toshiba Satellite M105-S3041 and its technical ratings are 10.8 volts 8800 mAh, Lithium Ion."
The question from the reader is a great question for it gets to the heart of battery manufacturing and begins to unravel the power of a battery. The answer is simply: 12 cells. But what does the answer mean and how does the number of cells relate to the overall value of a battery? Let's find out...
How Does A Battery Create Energy?
A battery is a device that converts chemical energy into electrical energy. Batteries create electrochemical energy by a chain of events that have to occur prior to the creation of electrical energy. Electricity is introduced into a battery via a charger. The charger acts as a conduit of the pushing electrons that are forcing their way into the chemical lithium. This charge process involves intercalation where electrons join with other molecules in the lithium's minuscule spaces between the the lithium's crystallized planes. Electrons are in essence ionizing lithium which loads the crystal planes to the point where they are forced into a current flow. Intercalation replenishes, in effect, lithium but the net result of ionization is the ultimate depletion of the lithium reactive property.
But what makes lithium good for batteries is that lithium is a highly reactive metal. Lithium has a very high electrochemical potential. In some lithium-based cells the electrochemical potential can be five times greater than an equivalent-sized lead-acid cell and three times greater than alkaline batteries. Lithium is also pliable and bendable allowing lithium to fit in tight configurations (perfect for in small cell designs in PDAs. Laptops, Cameras etc...).
What Type of Lithium Cell is Used in Laptops
Now this brings us to battery cells and our original question from the reader. Lithium based battery cells are good but there are a variety of lithium based battery cells. For example the lithium based cell identified as 18650 is one of the most common battery cell on the market for laptops. 18650 is manufactured by many manufacturers including many private branded companies to public companies like LG, Sony, Sanyo, Samsung, and Panasonic.
18650 is a 3.6V cylindrical Li-Ion cell. 18650 has no memory effect (distinguish between digital memory effect) and longer storage life than NiMH battery cells. 18650 is light weight and has a high energy density. It is in effect perfect for building batteries for laptop and other portable power devices.
The additional technical specifications for the 18650 battery cell include:
- Nominal Voltage Average 3.7 V - the concept of nominal voltage is that voltage range exists depending on the number of cells in the battery.
- Nominal Capacity - 2200 mAh (above 2200 the stability of lithium based cells is called into question)
- Max. Charging Current - 2.4 Amps Max.
- Max. Discharging Current - 4.6 Amps max.
- Dimensions (DxH) 18.3 mm (Max 18.4) x 64.9 mm (Max 65.1)
- Weight 46.5 g (1.64 oz)
- Internal Impedance Internal Impedance: less or equal to 90 ohms
- Cycle Performance is 80% of initial capacity at 300 cycles
Now as stated above the reader asked how many cells were in the Toshiba Satellite M105-S3041 Laptop Battery? The battery is rated at 10.8 volts and a capacity of 8800 mAh.
As I mentioned above the nominal voltage average is 3.7V. Some manufacturers may use 3.6V and some may use 3.7V. In the case of a laptop battery with 10.8V the nominal voltage rating used is 3.6V. Thus if we divide 10.8V by 3.6V we get 3. Thus 3 cells in a series. We also know that the batteries capacity is 8800 mAh. We know the nominal capacity is 2200 mAh. Therefore if we divide 8800 mAh by 2200 mAh then we get 4 in parallel.
Therefore we have: 3 cells in series multiplied by 4 cells in parallel equals 12 cells in total.
© Dan Hagopian
You have permission to publish this article electronically or in print, free of charge, as long as the bylines are included with link. Dan Hagopian of http://www.batteryship.com has been writing about consumer electronics since 1996. Dan has a personal passion for understanding how electronic devices can be powered, for learning about various types of battery devices and their internal systems, as well as the interaction of batteries with interfacing systems, and finally about the internal control mechanisms of batteries. Dan writes on battery power related devices for mobile computing and portable power. Dan writes about this technology extensively and his work can be found at http://www.batteryeducation.com.
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