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Dell RM791 Battery [Brand New!]
9-cell Dell RM791 Battery Replacement (7800mAh 11.1V Li-ion)
Dell RM791 battery replacement(7800mAh 11.1V Li-ion) is 100% compatiable with OEM Dell RM791 battery. We use Japanese cell to ensure better performance of all RM791 batteries we sell.
Battery Type: Li-ion Capacity: 7800mAh
Volt: 11.1V Color: Black
Cells: 9-Cell Dimensions: 299.80 x 49.50 x 37.60mm
* We ship to worldwild. 1 year warrenty & 30 days money back!
$122.27 $85.59 + Shipping Fee

Save: $36.68
6-cell Dell RM791 Battery Replacement (4400mAh 11.1V Li-ion)
Dell RM791 Battery replacement (4400mAh full capacity) is specially designed to replace the original Dell RM791 laptop battery. All the RM791 batteries are 1 year warranty and money back in 30 days!
Battery Type: Li-ion Capacity: 4400mAh
Volt: 11.1V Color: Black
Cells: 6-Cell Dimensions: 299.80 x 49.50 x 37.60mm
* We ship to worldwild. 1 year warrenty & 30 days money back!
$88.58 $62.01 + Shipping Fee

Save: $26.57
  • Specification
  • FAQ & Tips
  • Shipping
  • User Comment

Dell RM791 laptop battery is a high quality rechargeable replacement battery which can 100% compatible with the OEM RM791 battery. All batteries on are brand new(never be refurbished), and using grade A cells to ensure high performace.

  1. Tech Specs : Li-ion, 4400/7800mAh, 11.1V. 400-600 recharge Cycles.
  2. Battery Type : Brand new, Replacement Battery, 100% compatible with the OEM Dell RM791 battery.
  3. Featured Highlights : 4400mAh high capacity, Long battery life, reliable power for dependable performance.
  4. Quality Warranty : Our RM791 battery use high quality new cells, such as panasonic,LG,sanyo,samsung.
  5. Condition: Brand new-Not Refurnished, 1 Year warranty, 30 days money back.

The Dell RM791 laptop battery replacement can replace following Part Numbers:

  • Dell KM973
  • Dell MT335
  • Dell MT342
  • Dell KM974
  • Dell KM978
  • Dell 312-0708
  • Dell 312-0712
  • Dell PW824
  • Dell PW823
  • Dell PW853
  • Dell PW835
  • Dell RM868
  • Dell RM791
  • Dell 312-0711
  • Dell RM870

The Dell RM791 laptop battery replacement can compatible with following model:

  • Dell Studio 17
  • DELL Studio 1735
  • DELL Studio 1737

Tips about how to make your RM791 laptop battery last longer?

  1. Tips on charging your Li-ion Dell RM791 laptop battery for the first time
    A: We recommend that our customers do a FULL charge of the RM791battery the first time and then run the laptop on battery power 'til it gets back down to 10% battery left. Then just recharge it and run it however you want.
  2. Keep the RM791 battery and the contact terminals clean and avoid exposing the battery to extreme heat, cold and high pressure.
  3. Avoid letting your battery sit dormant for long periods of time. If you do want to leave your Dell RM791 laptop battery for a long time, charge it at 40%-50% compacity firstly and store it at a cool, dry and clean place. And it's better to take it out to recharge and discharge it each month.
  4. How to store my Dell RM791 battery for a long period of time?
    For extended storage (over 21 - 30 days), these guidelines can better preserve the life of your battery:
    * If it's a new RM791 battery, store it in its box until you need it. Otherwise, charge or discharge the battery to 40 - 60% capacity using your Windows operating system power meter, then remove it from your system.
    * Store in a standard office environment, away from extreme temperatures.
    * If possible, don't buy batteries until you need them.

Dell RM791 Shipping Information:

Normal Shipping
by Singapore Register Air Mail cost: $7.99 (You will receive your RM791 laptop battery after 10-15 days. But some times because of clear customs problems, maybe some days delay, we hope customers could help to wait for a while.)

Quickly Expensive Shipping by EMS cost: $39.99, and please contact us Via email if you choose EMS as shipping method. (You will receive your RM791 laptop battery after 7-10 days. But some times because of clear customs problems, maybe you would be asked to pay for your local tax and wait for some days.)

Shipping package:Our packing is very professional and safe.

More Shipping and return policy->

Let me start out by saying that I was quite skeptical of buying a battery online for half the price that Dell offers them at, but being the extremely broke college student that I am, I really didn't have much of a choice. Let me tell you that so far, this product is great. (its only been a few days, but all seems well) Fits perfectly into my laptop, and holds a charge for over 3 hrs while surfing the internet and through constant use. I would suggest your site to anyone and am extremely satisfied.


I am very happy with this laptop battery. It arrived exactly as described and in perfect condition. It fit perfectly into my laptop and has a long life. I would recommend this item to anybody needing this type of battery. :)


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Why shop RM791 battery with us?

  1. High Quality Dell RM791 battery
    Name brand li-ion cell with Grade A quality, 100% compatilbe, ROHS, CE, UL, ISO9001, ISO9002 certification.
  2. Better service and great battery warrenty
    Batteries we provide includes a full 1 year warranty. And we offer 30 day unconditional money back guarante and fast shipping on all of our Dell batteries.
  3. Bottom Price from factory
    We deliver the Dell RM791 battery replacement from factory directly. And we offer 30% dicount to all batteries now, the price would be much lower than other shop.
  4. Secure Shopping Guarantee
    The Secure Shopping Guarantee protects you while you shop at ebuybattery, so that you never have to worry about Paypal account safety. When shopping at online, you can shop with confidence.
  5. 100% compatible with original RM791 battery

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