For BENQ SQU-409

Replacement For BENQ SQU-409 Laptop Battery

Brand New Replacement For BENQ SQU-409 Battery.The superior Grade A cells inside this battery cartridge will provide longer run times between charges as well as a longer service life than cheaper batteries. The battery for BENQ SQU-409 has been precision-engineered and rigorously tested for capacity, voltage, compatibility and safety to exceed original equipment manufacturer specifications. Order Your Replacement Battery Today,1 Year Warranty,60-Day Money Back Guarantee!


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  • Model: BENQ SQU-409
  • 100 Units in Stock


Battery Type: Li-ion
Voltage: 11.1V
Capacity:4400mAh / 6Cell
Weight: 315g
Size:199.00 x 50.00 x 15.00 mm

Replace Part Number:

Fits model:
BENQ JoyBook S31 SeriesBENQ JoyBook S31-128BENQ JoyBook S31-C02
BENQ JoyBook S31-C20BENQ JoyBook S31-C27BENQ JoyBook S31-C28
BENQ JoyBook S31E-105BENQ JoyBook S31E-109BENQ JoyBook S31V-119
BENQ JoyBook S31V-127BENQ JoyBook S31V-552BBENQ JoyBook S31V-C15
BENQ JoyBook S31VE-103BENQ JoyBook S31VE-110BENQ JoyBook S31VE-113
BENQ JoyBook S31VEW-104BENQ JoyBook S31VW-120BENQ JoyBook S31VW-C06
BENQ JoyBook S31VW-C16
BENQ JoyBook S32 SeriesBENQ JoyBook S32B
BENQ JoyBook S52 SeriesBENQ JoyBook S52EBENQ JoyBook S52W
BENQ JoyBook S53 SeriesBENQ JoyBook S53EBENQ JoyBook S53W
BENQ JoyBook T31 SeriesBENQ JoyBook T31E
Once your laptop battery starts showing signs of wearing out, such as not maintaining a charge for very long,you need a new battery. A spare battery to extend the range of your laptop while on the road is also a great idea, and comes handy wherever you may be, especially at the office and school. Stable and durable, these batteries are all 100% quality-tested and fully compatible with your laptops. Every battery is individually tested and comes with a 1 year warranty.

Warranty Policy:

  • Full 1 year quality warranty and 60-day money back guarantee!
  • For BENQ SQU-409 Professional grade A cell batteries custom manufactured for high performance and longer life to exceed OEM specifications
  • The Exact Match System guarantees every replacement for BENQ SQU-409 battery to be 100% compatible and optimized for your OEM system.
  • Every replacement laptop batterry has been Certified by CE, UL, ROHS, ISO9001/9002 and has passed strict safety tests. Long lasting,
  • Superior Design for True Fit and Finish.
  • Designed for precise fit & compatibility.
  • Free Shipping.
How to care for your laptop battery

  • Any new laptop battery should first be fully charged by leaving it plugged in overnight. Once a computer battery is fully charged it will no longer accept any more power. It is a common practice to leave laptops plugged in after they have been turned off so that the battery has a full charge the next time you use your laptop. It is probably fully charged within 5 hours.
  • Never run your battery below the 2% critically low warning point. If your battery is run below this point it may not have enough energy to even recharge. This may effectively "kill" your battery.
  • Usually a lithium-ion battery should be stored at about 40% state-of-charge, because laptop battery's self discharge can break the battery in the storage.
  • Please take out the BENQ SQU-409 battery from your machine when it is not being used and clean it with soft and dry cloth.
  • Run on battery power without the AC adapter cord at least once a week to keep the battery cells active and at their peak potential. When your laptop is plugged into the power adapter the battery goes to "standby mode" while your laptop runs directly on electricity from the wall outlet.