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Cellevo ES4001FX-B Solar Portable Battery 4000mAh for Apple iPad/iPhone & Smartphones (5V/1A Output)

  • Lithium Polymer
  • 5 Volt
  • 1 A
  • Pin It
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Key Feature:

- High quality Solar panel input with efficient power
- Mini USB for Major Input to recharge itself within 5-6 hours only
- Smart LED power capacity indicator
- Test button with capacity check function
- High quality & safety Li-polymer battery cell with 4000mAh full power capacity
- Over charge, over discharge, over current, short-circuit & temperature protection
- Auto switch off when fully charged or disconnected with your devices
- Pre-charged and ready to use anytime anywhere
- Almost full power capacity if without usage at all within 1 year


* Battery Type: Highest Quality & Safety Lithium-Polymer
* Power Capacity: 4000mAh @3.7V
* Solar Panel (Mono-Crystalline Silicon): 5.5V/120mA High Quality
* Rated Input: Mini USB 5V/800mA
* Rated Output: USB 5V/1A
* Self-Charging time:
(A) Through Solar Panel: 33-35 hours (Under full sunlight conditions)
(B) Through USB input port: 5-6 hours
* Dimension: L115 x W65 x H14mm
* Weight: 148g

Learn more about the Cellevo ES4001FX


Portable Battery


Compatible Phone Manufacturer


4000 mAh
Lithium Polymer
5 Volt
1 A

Manufacturer Warranty

1 year

Quick Info

Customer Reviews of the Cellevo ES4001FX

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  • Kyle M.
  • 7/16/2014 2:01:14 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

3 out of 5 eggs

Pros: Dirt cheap. Literally. I've seen dirt that cost more than this.

It functions. This is a battery. What more are you really asking for than to plug something in and get power off it?

Cons: There's a reason it's dirt cheap.

Not very well made. Feels like a cheap piece of plastic and looks like one too.

It supposedly takes more than 30 hours of direct sunlight to use the solar panel. Guess I'm all set for my next outer space adventure. Until then, I'll plug it in.

Other Thoughts: It's a cheap little battery and as long as you don't get a bad unit, it's worth every penny.

Did you find this review helpful? Yes No

  • Jesse W.
  • 6/30/2014 10:16:05 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

1 out of 5 eggsBad

Pros: Cheap, have seen worse designs, several adapters

Cons: Literally came all scratched up even though the packaging had not been compromised. It's as if somebody kept this in their pocket for a year with a set of keys. Also the packaging had it adhered to the back of the box so when you go to pull the device out, you rip off the back panel.

Other Thoughts: Would not recommend. 2/10

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  • Gregory D.
  • 3/17/2013 7:35:20 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

1 out of 5 eggs

Pros: Inexpensive, keeps my android charged over a long trip. Has a good variety of connectors.

Cons: Built poor, front is loose out of the box. The solar charger is just for show, it does nothing.Led lights up as if it were changing, but it never charges. Been ina window for 3days, no change.

Other Thoughts: There was another one the same price, with a higher capacity rating. I got this one instead because of being rechargeable by solar power. Dont buy it.

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