SKU: 26182851869

BTI Laptop Battery for Dell Alienware m15 R2 / m17 R2 — 76Wh

Sale price$125.90 Regular price$139.89
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Ships within 48 hours · Estimated delivery Sep 19 - Sep 24

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Description

BTI Laptop Battery for Dell Alienware m15 R2 / m17 R2 — 76WhMeet the BTI Battery, a high capacity notebook power solution designed to keep you productive on the go. Engineered for reliability and long lasting performance, this rechargeable LiIon battery delivers the power your laptop needs when youre away from an outlet. With a robust capacity of 66. 70 Ah (6670 mAh) and a total energy rating of 76 Wh, it provides extended runtimes to help you work, study, and entertain without interruption. The BTI Battery

Meet the BTI Battery, a high-capacity notebook power solution designed to keep you productive on the go. Engineered for reliability and long-lasting performance, this rechargeable Li‑Ion battery delivers the power your laptop needs when you’re away from an outlet. With a robust capacity of 66.70 Ah (6670 mAh) and a total energy rating of 76 Wh, it provides extended runtimes to help you work, study, and entertain without interruption. The BTI Battery uses a proprietary battery size crafted for a precise fit, ensuring optimal contact with your device’s power system and minimizing the risk of connection issues during travel or daily use. Built to support busy professionals, students, and power users, it offers a stable, consistent power delivery and a lifecycle suited for demanding workloads, from multimedia editing to multimedia streaming and heavy browsing. This is more than a spare; it’s a dependable replacement that preserves your notebook’s portability and performance, so you can focus on your tasks rather than searching for an outlet.

  • High capacity for extended run times: 6670 mAh (66.70 Ah) and 76 Wh give you more hours between charges, enabling longer work sessions, video calls, and immersive media consumption without frequent recharging.
  • Optimized voltage for broad compatibility: 11.4 V provides the right power baseline for a wide range of notebook systems, supporting stable performance under load and good efficiency during peak demand.
  • Advanced Li‑Ion chemistry: Lithium‑ion cells deliver lightweight, efficient power with a longer lifecycle and consistent discharge, reducing weight while maintaining reliability for everyday use.
  • Proprietary battery size for a secure fit: Designed to match a specific form factor and connector interface, the BTI Battery ensures snug alignment, dependable contact, and easy replacement.
  • Rechargeable with built-in safety features: Comprehensive protections guard against overcharge, overdischarge, short circuit, and thermal events, helping to protect both your notebook and battery health over time.

Technical Details of BTI Battery

  • Brand: BTI
  • Product type: Notebook Battery
  • Chemistry: Lithium Ion (Li‑Ion)
  • Voltage: 11.4 V
  • Capacity: 6670 mAh
  • Energy: 76 Wh
  • Form factor: Proprietary battery size
  • Safety features: Overcharge protection, overdischarge protection, short-circuit protection, and thermal monitoring

How to install BTI Battery

  • Power down and unplug: Turn off your notebook completely and disconnect any external power or peripherals before starting.
  • Access the battery compartment: Remove the back panel or battery cover as outlined in your notebook’s service manual to access the existing battery and connectors.
  • Disconnect the old battery: Carefully unplug the battery connector and lift the old battery away, taking care not to damage surrounding components.
  • Align and insert the BTI Battery: Position the BTI Battery so the connector aligns with the motherboard socket and the battery sits securely in the compartment.
  • Secure and test: Reattach any screws or covers, reconnect the power adapter, and power on the notebook to confirm a proper boot and initial charge.

Frequently asked questions

  • Q: Is this battery compatible with my notebook? A: The BTI Battery is designed for notebooks that use a proprietary battery size and 11.4 V Li‑Ion configuration. Please verify your device’s battery form factor and connector specifications to ensure a secure fit and proper operation.
  • Q: How long will the BTI Battery last on a single charge? A: With a 76 Wh capacity, you can expect extended runtimes that vary with screen brightness, processor load, and peripheral usage. Real-world results depend on your specific notebook model and usage patterns.
  • Q: Is it safe to replace my notebook battery with the BTI Battery? A: Yes. The BTI Battery includes built‑in safety protections and is designed to be a straightforward replacement for compatible notebook models, providing reliable power without sacrificing device safety.
  • Q: How should I care for and maintain this battery? A: For best results, avoid extreme temperatures, unplug from the charger only when fully charged to prevent unnecessary cycling, and calibrate the battery periodically if your notebook manufacturer recommends it. Letting batteries drain completely on a regular basis is not advised for Li‑Ion cells.
  • Q: What comes with the BTI Battery? A: The BTI Battery ships as a ready‑to‑install replacement unit. Depending on the retailer, you may receive protective packaging and installation guidance to aid a smooth replacement.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 26182851869

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pradeepkanth
San Leandro, US
★★★★★ 4
Classy and sporty. Great value!
Color: Grey, Color: Grey
Excellent watch for the price. Looks sporty and dressy. More towards dress watch. Blue is dynamic. Strongly recommend blue for sporty feel. I was thinking of aqua terra. This come close to it with a price less than what i would have paid my state tax for omega aqua terra. My only concern is bracelet which i feel kind of OK. Better bracelet design would have made this watch much superior. 21 lug width is awful. Other than that, nothing to complain.
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Reviewed in the United States on July 13, 2020
T
Verified Purchase
Tim Shepherd
San Leandro, US
★★★★★ 5
Stunning Gentleman's Watch
Color: Grey
This is my second Tissot watch. It's quite stunning in person. The online photos don't do it justice. It has the look and feel of a much more expensive gentleman's watch which makes this purchase a great bargain. Tissot is a great reliable Swiss made watch brand. My first Tissot watch which is probably more than 20 years old still runs great. Very pleased with this purchase.
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Reviewed in the United States on October 16, 2025
L
Verified Purchase
L.Lopez
Boise, US
★★★★★ 5
Good Tissot Watch
Color: Grey
Arrived on time, in its original box, include a 2 year international warranty, into the box include a book with the Tissot brand history in Switzerland. Algo a second book with a whole catalog of Tissot watches men and women. The watch looks better when you put in on your wrist. The “naval” blue really gives the clock a classy look. The stainless steel workmanship is really good, the metal is bright and perfectly polished. The metal wristband quality is very good, did not have any problem to adjust the size , I went to my preferred clock workshop for this job, they extracted a few pieces of the band to fit to my small wrist size. Have to get used to the butterfly latch, but after a few days, now I learned to open and close it without any effort. The clock it’s very accurate, I’ve been using my Tissot for near a month and it just increased a few seconds per week. I do the setup and check accuracy with my pc clock. In short, It”s a good value watch, nice, good looking, accurate.
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Reviewed in the United States on August 1, 2021
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Verified Purchase
Jose Correa
Lexington, US
★★★★★ 5
Stunning Automatic Watch With TopTier Durability and Precision
Color: Grey
“I got this Tissot PRX for my cousin’s birthday and bro fell in LOVE instantly. This thing keeps time like a beast, never slows down, never lags. Automatic movement, so no batteries, no drama. Durability? Stupid good. You can hit it, bump it, live life rough, it still looks box fresh. Size wise it was almost perfect. I just had to remove two links, nothing big. It’s light, functional, comfortable, doesn’t weigh you down, doesn’t get in the way but more importantly I can say this watch is in everyone’s eyesight when we wear it. Cause of course I had to get another one! Basically. I gave him a very nice piece as a gift, and now he’s walking around like he owns Switzerland.
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Reviewed in the United States on December 11, 2025
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Cienfuegos
Fort Morgan, US
★★★★★ 5
Great watch!!!!
Color: Grey
Excellent quality, one of the best, elegant.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026

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