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Mugen Power 1800mAh Extended Battery for LG GM750, GT540, Optimus, GW620, GW820, GW880, GW825V, P500 Optimus One, GX500 [HLI-400NSL]
Mugen Battery will last 20% longer!


Availability: In stock


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Mugen Power Extra Strong Extended Replacement battery.

Product Videos

LG GW825v (Projector) Mugen Power standard (1800mAh) battery HLI-400NSL

Additional Information

Cell Type Li-ION
Voltage 3.7v
Capacity (mAh) 1800
Battery Door Not Required
Original Battery Model LGIP-400N (1500mAh)

Mugen Battery will last 20% longer!

Mugen Power Extra Strong Extended Replacement battery. Express Shipping Worldwide!

Mugen Power is the worldwide leading brand of high performance batteries for portable electronic devices. Mugen Power means Performance and Quality.

Mugen Power batteries have better performance (higher capacity) and reliability (longevity & safety) than other brands. The superior performance improves run time, often doubling that provided by the original brand replacement. The superior quality results in longer battery life and better protection of the powered device.

All Mugen Power batteries also undergo vigorous QA procedure, resulting in Mugen Power achieving the lowest return rate in the industry. All Mugen Power batteries are CE approved.

Mugen Power batteries are premium product and designed for experienced users, who understand importance of quality for long battery life and safety of everyday use.

See what others say about Mugen Power Batteries:

"Go buy one, well worth it!"

"The extra size and weight increases pale into insignificance when you consider the true convenience the battery gives... it represents excellent value for money."

"a much better choice"

"This is the second Mugen Power Battery that I own and I can't think of me having a Pocket PC without a Mugen Power Battery on it. This battery gives me the freedom of mind of not having to think about to recharge the battery everyday after work."

Longer Battery Life Premium QualityStandards Compliant

Worldwide delivery: We ship to any address Worldwide

Shipping Method: We ship your order using World-class Courier Services so You get your products securely and as fast as possible.

Online Tracking: Right after your order is shipped, we send an email with online tracking information.

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Mugen Power is proud to offer safe and secure online shopping experience.

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Please visit our customer Learning Center page for more information.

Mugen Power Satisfies

Returns & Exchanges:

If you are not 100% satisfied with puchased products, you can return your order to us for a full refund or replacement.

Return Merchandise Authorization (RMA) number is required on all returns. All items returned without RMA number will not be accepted and refused.

To obtain a Return Merchandise Authorization (RMA) number, please contact us for further instructions. Returns or exchanges are made within 1 year after the purchase date. If possible, items should be returned with all parts and accessories, and in original packaging, including the manual, the inserts, the RMA number and a copy of the packing slip or invoice.

We will process exchanges or refunds within 1-2 weeks of receipt.


Customer Reviews

Overall Rating

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Items 1 to 10 of 11 total

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Good Battery..but...

17 June 2015


It's a really nice battery and lasts a long time.
My complaint is that the color doesn't match the color of the 3ds console. It's close, but you can tell there's a difference.
Also, mine came missing one screw that holds the cover in place. You can't use the original screws as they aren't long enough.
That presented a problem because it takes two screws to hold the battery cover in place. I managed to dig up a similar screw off a pair of eyeglasses that worked. The screws are really tiny so I'm surprised I found one to replace the missing one.
If it wasn't for the color and the missing screw, I'd give the product 5 stars!


Great quality

23 April 2015


Excellent quality battery ! Its much much better than the original. Can last up to 6-7 days on standby !

Pros- Excellent built quality , Excellent capacity
Cons - non really except the fact it could be a bit cheaper.



14 October 2013


Доставка заняла 1 месяц. Телефон теперь работает 2 дня :)


very good

21 August 2012


Battery works very goos as promise...!



16 May 2012


i had to wait quite long but it is a great battery!!



9 April 2012


Отлично! Теперь оптимус живёт значительно дольше! Огромное вам спасибо!



3 December 2011


Battery works good. I've used it before.


Great Product!

24 October 2011


The battery fits perfectly and works well to boot. I can now get through a normal day with battery to spare rather than it go dead 2/3 of the way through. I have some pictures somewhere and I'll try to post them to the forum that I mentioned a while ago. Perhaps that will help to clear up any confusion!
Thank you for all of your help!



23 July 2011


Compared to the original battery (that is 6 months old) it lasts about 1.5-2 times longer.
It fits perfectly and the shipping has been very fast


Really good

20 July 2011


It is really good! After the first 4-5 full-charge, my optimus-one can now stay turned-on 2 full day (also 3 days with low-usage)!
It fits perfectly as dimension in the phone.

Items 1 to 10 of 11 total

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