New Premium Mobile/SmartPhone Battery Replacements CS-MUM421XL
SKU: 76013529653

New Premium Mobile/SmartPhone Battery Replacements CS-MUM421XL

Sale price$17.05 Regular price$18.95
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 5 - Jul 10

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For Your Every Summer RSVP, with Code: SUMMER15

Description

New Premium Mobile/SmartPhone Battery Replacements CS-MUM421XLOverview Categories Mobile SmartPhone Battery Compatibles # View Full List of OEM numbers and models here Brand Cameron Sino Voltage 3. 85V Chemistry Li Polymer Capacity 4000mAh Dimensions 73. 70 x 66. 60 x 4. 40 mm Weight 80. 0g Bar Code 4894128123118 Type Brand New Original Battery Warranty 1 Year Performance Guaranteed to Meet or Exceed Original Performance Certifications ISO9001, RoHS, and CE * Please make sure that the device manufacturer, The

Overview
Categories
Mobile/SmartPhone Battery
Compatibles #
View Full List of OEM numbers and models here
Brand
Cameron Sino
Voltage
3.85V
Chemistry
Li-Polymer
Capacity
4000mAh
Dimensions
73.70 x 66.60 x 4.40 mm
Weight
80.0g
Bar Code
4894128123118
Type
Brand New Original Battery
Warranty
1 Year
Performance
Guaranteed to Meet or Exceed Original Performance
Certifications
ISO9001, RoHS, and CE

* Please make sure that the device manufacturer, The model number and also the battery part number are all listed in our product details. Some manufacturers have more than one battery type fitted in like models. We recommend that you remove the original battery before ordering to confirm this. If you are not sure we may be able to confirm for you.

* Please be advised that some higher capacity batteries are larger than the standard battery from the manufacturers. Please make sure that your model number is shown in the information above before ordering. If there is any doubt contact us first and we can advise if this is a suitable replacement for your device.

Description

Mobile/SmartPhone Battery Articles & Tips

iTEKcanada Offers Free Shipping to All of Canada. ( Free Shipping for All Order over 59$+ ) !
The CS-MUM421XL Mobile/SmartPhone Battery will solve your battery problems or provide you with a spare battery. The CS-MUM421XL Mobile/SmartPhone Battery comes with a 30 day money back guarantee and 1 Year Warranty. Once we have received your new order for the CS-MUM421XL Mobile/SmartPhone Battery, it will be processed within 24-48 hours or on the next business day via CanadaPost Mail.

Purchasing Mobile/SmartPhone Battery
Mobile/SmartPhone Battery by iTEKcanada.com are usually lower in price and usually exceed the performance of OEM Mobile/SmartPhone Battery. Many of iTEKcanada.com’s Mobile/SmartPhone Battery use the same battery cells as OEM batteries.

What is mAh / Wh?
These ratings show battery`s capacity. Think of them as gas in your car tank, the bigger the tank, the more fuel it will carry and your car will drive longer. Same with these batteries, the higher the mAh/Wh, the longer your device will run between recharges.

Will your higher capacity (mAh/Wh) Mobile/SmartPhone Battery work in my device, even though my original battery has a smaller rating?
Definitely! Our batteries are designed to be 100% replacements for original batteries. Higher mAh/Wh rating means longer run time between recharges. The higher the rating the slower it will take for the batteries to drain down. Meaning you will get longer talk time with a higher mAh rating. In other word, higher is the mAh number, better it’ll be for your device.

Quality and Safety
This battery contains advanced technical components and has been tested according to strict CE safety standards. The battery contains a chip that prevents overcharging and short circuiting. Next to this the battery is made from high quality cells that do not suffer from a so-called 'memory effect'.'

Factory Fresh
Batteries lose performance over their lifetime, even when they are not used. Many importers and resellers store their batteries in stock for a long time before they are sold. iTEKcanada.com sends products almost directly from the factory, so you are sure that you will get a brand new high quality battery!

Compatible Devices & Replacements

Compatible Batteries

Device Manufacturer
Battery Number
Xiaomi
BM4A

Compatible Devices

Device
Manufacturer
Model
Mobile/SmartPhone Battery
Xiaomi
2016020
Mobile/SmartPhone Battery
Xiaomi
2016021
Mobile/SmartPhone Battery
Xiaomi
Redmi Pro
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]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 76013529653

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Verified Purchase
Naomi L.
Omaha, US
★★★★★ 5
Wonderful
Super comfy and easy on and off, yet stylish imo! I could walk miles in these as a 56 yo and have worn them for three years! I hope they never stop making them. The only tweek I would suggest is to cover the footbed with leather or suede not cloth so they would last longer!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2026
J
Verified Purchase
Johsz Family
Lowell, US
★★★★★ 5
Great value and super comfy!
Size: 7, Color: Sand
These shoes are so comfortable and my new go to for summer. They are lightweight and fit like a glove. Great value
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
K
Verified Purchase
Kindle Customer
Pawtucket, US
★★★★★ 5
Lovely sandals!
I highly recommend! These are so comfortable! Right out of the box, they can be worn all day. The velcro-adjustable straps are great for making for a perfect fit. The aren't clunky to wear, even though they appear to be. They're super cute, in my opinion. The sock liner is textile, so feet feel good all day, not slimy, like leather and suede can sometimes make feet feel if socks aren't worn.
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Reviewed in the United States on March 17, 2026
P
Verified Purchase
Pamela
Massapequa, US
★★★★★ 5
Cute and Comfortable
Size: 10, Color: Black
This is my second pair. I bought the sand color at my local Macy's. I got their last pair. I have issues with back pain and ankle swelling and pain. These are so comfortable I had to get them in Black. The adjustable straps are great. My feet are a little bit wider because of the swelling issues. So if you have very narrow feet these might be a little big. You might want to go down a half a size. But otherwise I wear a size 10 and they fit perfectly. I don't think the picture does the color justice. The black almost looks like velvet, it's very deep and rich. I wore them out today for the first time and got lots of compliments. The footbed is very comfortable with the memory foam. Lots of support. I noticed my back and ankle pain is much better wearing these. I've never owned UGG before. If these hold up really well and continue to stay comfortable, I will be purchasing other styles for fall and winter.
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Reviewed in the United States on May 1, 2026
T
Verified Purchase
Tilly
Chelsea, US
★★★★★ 5
Great fitting sandals
Size: 7.5, Color: Sand
Great fitting. Beautiful. Fit like a glove. Great to walk in. Great quality. Lightweight. All in one gorgeous sandals.
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Reviewed in the United States on May 11, 2026

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