Replacement Battery for Maxwell K2 3000F Connecting Piece Super Capacitor G721 XH

Maxwell 2.7v3000F Li-ion Battery

* Please ensure the product(s) that you are going to buy fits the brand, model and part number of your device.

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Special Price:£ 51.99 £ 62.39 (Discounts up to 30%)

Order More? Contact Us Selected Maxwell 2.7v3000F batteries opens up new mobility and usage possibilities of your devices. These batteries are manufactured using new, high-quality, balanced features, rechargalbe cells that ensures the longest battery life and maximum capacity. These batteries do not have "memory effect," so they can be recharged at any time convenient for the user.

Product Condition Brand New
Brand Maxwell
Battery type Li-ion
Capacity 2.7V
Voltage 2.7V
P/N 2.7v3000F
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※ 12 Months Warranty. 30-day money back guarantee.
※ Orders ship out in 1-2 business days.

High Quality Maxwell 2.7v3000F Battery Replacement

High Quality Components

This Maxwell 2.7v3000F battery replacement has built-in A+ grade cells and high-quality TI intelligent control chip, which not only performs better, charges faster but lasts longer. In addition, the outer shell of the Maxwell 2.7v3000F battery is made according to the original battery shape design scheme, using high temperature and wear-resistant ABS +PC alloy environmentally friendly materials, which can be 100% compatible with your device and fit closely.

100% True Capacity

Do not be deceived by the false capacity advertisements from bad merchants, of which battery capacity will often drop off significantly after using a few months. Made with the highest quality "A" grade cells, our Maxwell 2.7v3000F Capacitors Battery has passed various strict quality tests to ensure that it meets OEM specifications, which can provide more than 600 charging cycles to maintain the same capacity for a long time.

Safety Is Vital!

Using a poor battery with unstable performance may do harm to the notebook and your safety. Our Maxwell 2.7v3000F replacement battery has passed CE, UL, ROHS, and other international authority certifications, which provides a variety of protection functions, effectively preventing common risks such as short circuits, overheating, and overvoltage. In order to protect your device and your safety, please rest assured to purchase our high-quality batteries!

Compatible partnumbers:

This product is compatible with:

Maxwell K2 3000F Connecting Piece Super Capacitor G721 XH
2.7v3000F Multiple Smart Protections


Q: How to check this battery is compatible with my laptop?

A: Please find out your old battery's part number or the exact model name of your laptop at first (like 'Maxwell 2.7v3000F'), then to match our product compatibility chart. Second please compare your old battery to our product images ensure their shape is same. Finally check the voltage(Rating) is same to your old battery's. More details please click How to find one correct battery for my laptop?

Q: Does your replacement Maxwell 2.7v3000F battery compatibles with my originalMaxwell 2.7v3000F battery?

A: 100% OEM compatible, guaranteed to meet the specifications of your original Maxwell 2.7v3000F battery (ensue same size & high quality). And all our batteries for Maxwell 2.7v3000F laptop have obtained international certification( CE, UL, ROHS, ISO9001/9002 ).

Q: How to charge a new battery for Maxwell 2.7v3000F for the first time use?

A: New Maxwell 2.7v3000F battery pack is normally shipped in its partially charged condition. Please cycle your new Maxwell 2.7v3000F battery pack by fully charge and discharge it for 3-5 times to allow it to reach its maximum rated capacity before use. (Note: it is perfectly normal for a battery to become warm to the touch during charging and discharging).

New batteries are hard for your device to charge; they have never been fully charged and are therefore "unformed". Sometimes your device's charger will stop charging a new battery before it is fully charged. If this happens, simply remove the battery from your device and then re-insert it. The charge cycle should begin again. This may happen several times during your first battery charge. Don't worry; it's perfectly normal.

Q: How to Remove Replace Install and Upgrade your Maxwell 2.7v3000F Capacitors Battery?

A: 1. Turn your Maxwell 2.7v3000F laptop over.

2. Find the Capacitors Battery release button lock for your Maxwell 2.7v3000F laptop.

3. Now that your Maxwell 2.7v3000F Capacitors Battery is unlocked, find the battery release button down.

4. Holding the laptop battery release button, gently pull your battery away from the laptop.

5. Now that your Maxwell 2.7v3000F battery is removed, grab your replacement Maxwell 2.7v3000F battery for installation.

6. Insert the battery into the slot. Push the Maxwell 2.7v3000F battery towards the laptop and secure it in place.

This replacement Maxwell 2.7v3000F battery pack is specially designed with multiple-protection circuit for maximum safety. The housing of the Maxwell 2.7v3000F battery pack is made of non flammable and very durable plastic, which is fire retarded and avoids damage when dropped from low heights.

All our high quality replacement batteries for Maxwell 2.7v3000F have been tested and proven to match and/or exceed original Maxwell battery performance and are 100% compatible with Original Manufacturer Specifications.This battery for Maxwell 2.7v3000F comes with 1-Year limited warranty.

Thank you for purchasing this high quality replacement Maxwell 2.7v3000F Capacitors Battery at We have a strict testing process to ensure that your ordered products (like this battery for Maxwell 2.7v3000F) are functionally correct before they are packed and sent to you. And before placing an order please make sure that your old original Maxwell 2.7v3000F battery's part number is listed at below and the shape is same to our batteries' images (please view the larger images for details).

Item Code ECN10552_Cap_Oth
Condition Replacement, Brand New
Type Li-ion
Brand Maxwell Compatible Capacitors Battery
Capacity 2.7V
Voltage 2.7V
Warranty 1 Year Warranty, 30-day money back guarantee!
Protections Short circuit protection, over voltage protection, over current protection
Certification RoHS, CE, FCC
Useful Life 300-500 Recharge Cycles

30-Days Money Back Guarantee

We promise that if you are not satisfied with the battery for Maxwell 2.7v3000F which you ordered, you can return the battery and we will refund the amount you spent on the purchase within 30 days.

One-Year Warranty

We are absolutely confident of our batteries and offer one year warranty on the Maxwell 2.7v3000F battery replacement.

100% Security Payment

For the security of your account, our payment methods are safe and trustworthy. We protect every client's privacy, so please buy with confidence!

To reduce risk of fire or bums, do not disassemble, crush, puncture short external contacts, or dispose of it in fire or water

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