====== Tenergy Li-ion 18650 Pack ======
{{ :electronics:battery:tenergy.png|}}

[[http://www.tenergybattery.com/index.php?page=shop.product_details&flypage=shop.flypage&product_id=123&category_id=7&manufacturer_id=0&option=com_virtuemart&Itemid=27|Manufacturer site]]

|Capacity|6600mAh|
|Voltage|3.7V|
|Dimensions|69mm Length x 54mm Width x 18mm Thcikness|
|Weight|9.0 oz|
|Max. charge current|1A|
|Max. discharge current|3.5A|
|Cut off voltage/Over-Charge Protection: 4.35V|
|Over-Discharge Protection:|2.4V|

  * High quality 3.7 V Li-Ion rechargeable battery pack
  * Made of 3 pcs of 2200mAh cylindrical 18650 cells with PCB and poly switch for full protection
  * Built-in IC chip will prevent battery pack from over charge and over discharge and prolongs battery life


Cell voltage is 3.78V (2010/09/28)


====== Laptop Battery pack ======
{{ :electronics:battery:img01240.jpg?500|}}
9 cell Li-ion battery (3x3 series parallel)

Cell voltage, left to right (2010/09/28)
  * 3.71V
  * 3.72V
  * 3.73V

  * Problem related to this: http://i-cat.blogspot.com/2008/11/lenovo-battery-sudden-death-syndrome.html
  * [[http://documentation.renesas.com/eng/products/assp/rej03f0129_m61048fp.pdf|M61048FP]] Battery Protection Analog Front End (AFE) IC
  * M37512 IC
  * CGR18650 Cells
  * TCP8114 FET
  * Other pages of reference:
    * http://alternative-battery.blogspot.com/2008/04/100-refillable.html
    * http://sbworkshop.com/
    * http://www.summet.com/blog/2007/02/17/laptop-battery-refill/3/
    * http://alternative-battery.blogspot.com/2009/10/extended-repairing-power.html