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Item#: 9SIA04D0GS0965

Opteka BP-SC4000 4000mAh Ultra Thin Solar Powered High Capacity Backup Battery Charger + 10 Charging Tips

  • USB
  • 4000mAh

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

The Opteka BP-SC4000 Ultra-Thin Solar Powered Mobile Device Charger allows you to charge your mobile devices when a wall outlet or USB power source are not available. The BP-SC4000 contains a 4000mAh lithium-polymer power bank which charges up via solar energy or computer USB port, and features 10 mobile-device connecting tips, extension cable and USB port making the BP-SC4000 compatible with most Nokia, Samsung, LG, Palm, Blackberry, Apple iPhone, iPod, iPad, Motorola, Sony, Bluetooth, GPS, various digital cameras, PSP, various eBooks, tablets, Nintendo DS, Kindle, and other devices.

• Will fully charge your mobile device using solar or USB power
• Ultra high capacity 4000mAh built-in lithium-polymer battery
• Includes 10 charging tips with USB port to maximize compatibility
• LED power capacity display

• Battery Type: Lithium-polymer
• Battery Capacity: 4000 mAh
• Voltage: Output DC 5V 1000mA, Max Solar charge: 250mA
• Operating Temperature: 0°C-45°C
• Dimensions: 4.5" x 3.3" x 0.5" (114 x 84 x 14mm)
• Weight: 6.5 oz. (185g)

Learn more about the Opteka BP-SC4000




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Warranty, Returns, And Additional Information

Customer Reviews of the Opteka BP-SC4000

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  • Dan J.
  • 6/10/2014 8:10:06 AM
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsGreat, Great and Great

Pros: Compact, has every connector you could need, holds charge, easy to use. I really have absolutley no complaints with this. I leave it in the dash of my truck and when i need to charge my phone its always ready to go. Takes about 2 to 3 days of constant sunlight to get a full charge. It does not have enough power to give my phone a full charge but in a pinch it does exactly what i need it to do. It will charge the phone to about 70% which is usually more than what i need.

Cons: None

Other Thoughts: I have had several people who saw me use this and have ordered one for themselves. its a great simple unit to have around when you need some juice to get you to the next power outlet.

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  • Paul C.
  • 1/14/2014 6:29:58 PM
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggs1fatal flaw...

Pros: Light weight, potential for solar augmented charging
Good capacity
Very durable (accidentally ran it over w/my car, still works fine)
Does what it should.

Cons: Solar charging is a little slow, not a big deal though...

The fatal flaw... using mini USB instead of Micro to charge it.

Other Thoughts: It was an impulse buy on a shellshocker deal. I'm not unhappy with it, will probably solder a micro header when I get some free time

1 out of 1 people found this review helpful. Did you? Yes No

  • Yu-Jin C.
  • 12/19/2013 12:25:39 PM
  • Ownership: 1 month to 1 year

4 out of 5 eggsDecent solar battery

Pros: Good capacity
Slim profile
Comes with connectors

Cons: Mini-USB input
Solar charging is slow/hardly works past 50%

Other Thoughts: This is a pretty good deal just to use as a battery; think of the built-in solar panel as an extra. Even if left in direct sunlight for extended periods, the panel struggles to charge the battery past 50%. Solar Restore has a similar issue, probably due to the small size of the solar cell.

Output is 5v/1A, single port. Input is via mini USB which is a bit inconvenient (hardly any devices use that anymore- I have to keep changing the connectors). It easily fits in a pocket so can be used on the go.

0 out of 1 people found this review helpful. Did you? Yes No

  • JANE R.
  • 11/29/2013 11:14:14 AM
  • Ownership: less than 1 day
  • Verified Owner

4 out of 5 eggsSolar Charger

Pros: Came fully charged
Relatively low profile
Sleek design

Cons: None that I've found s far

Other Thoughts: I travel and camp alot so this will definitely come in handy mounted on top of my camp pack!

0 out of 1 people found this review helpful. Did you? Yes No

  • MARK H.
  • 11/28/2013 9:48:20 AM
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsAmazing... a solar charger that works.

Pros: The biggset pro is that this solar charger actually works within reasonable expectations (see cons). It can be used as a regular backup battery -- charged through any USB adapter from the 120V line, a computer, or car. Or it can be recharged in full sunlight, but this takes several days.

It delivers one full charge to my tablet or two charges to my cell phone without being completely drained.

It comes with a plethora of different connectors, which is another plus.

Cons: Due to the solar cells, the device is much larger than backup batteries with comparable capacity.

Buyers need to be aware that solar cells are not very efficient. I recently reviewed a competitor's product that takes several *weeks* to accumulate about 25% charge. The Opteka battery merely takes days, but this is still a fairly long time, unless the solar option is only used as a backup option. For any off-grid use, the cells are simply not powerful enough.

Other Thoughts: When the device receives several hours of unobstructed sunlight a day (e.g., placed on a window sill), and without tracking the sun's position, the Opteka battery needs about 8 to 9 days to fully charge.

The theoretical maximum (assuming the manufacturer's specs of 250mA are correcrt and not exaggerated), 4000mAh would require 16 hours of perfect sun exposure. Perfect means clear skies, solar panel almost perpendicular to the sun rays, no shadows or other obstructions. If we assume 8 days with perhaps 5 hours of good sun exposure, the average current is more like 100mA. If we count 24 hours for an overall net value that includes the night, this reduces to approximately 20mA average current delivered.

To complete this train of thought, if you have a cell phone with a 2000mAh battery, and we assume a transfer efficiency of 65%, you can deliver a full charge to your cell phone every 6 days purely with solar energy. Of course, YMMV.

9 out of 9 people found this review helpful. Did you? Yes No

  • Thomas R.
  • 11/24/2013 8:36:17 AM
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsGreat Product, and Great Company

Pros: The unit does what it claims, and I have no issues in operating it. I can charge my smart phone 4 to 5 times without charging it. I have emailed the company general questions, and they have been very responsive.

Cons: None

Other Thoughts: The unit takes about 3 hours to charge from an external plug in ac to DC wall charger, for pre-charging. Under the office window, it does take about 12 hours to charge.. start early in the day.. as the saying goes. The unit seems well made, I would recommend one of those neoprene 7 inch tablet sleeves for this unit.. to give it more protection. This unit is nice to have if the power goes out.

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  • Anonymous
  • 11/24/2013 3:52:58 AM
  • Ownership: more than 1 year

2 out of 5 eggsmeh

Pros: It holds a charge

Cons: doesn't charge itself from solar

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  • Dan K.
  • 11/20/2013 9:03:40 AM
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggs

Pros: Nice little unit. I bought it for emergencies and travel, not that I do a lot of either. So I checked it out upon arrival and it had a good charge. I just now checked it and it had 3/4 bars after a month or so sitting in its original packaging, and I did use it for a while to power up a B&N Nook Color 7" Tablet and test it for a short while at that time. So I am happy.

Cons: None.

Other Thoughts: Keeping this device in the closet will require me to do a maintenance charge from time to time so as to keep it in peak readiness for an emergency.

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  • Amanda G.
  • 11/17/2013 7:44:49 AM
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsWorks just like my other,great

Pros: Charges battery and has solar assistance for helping it stay topped off.(trickle charging it)

Cons: none.

Other Thoughts: the amount of solar cells in this small area means that it is a small trickle charge meant to help sustain the charge and there is no solar technology out there yet that in this small area could work like a full charging system but for sure could be used in emergency ( Lost hiking for couple days).
The soar part is just an added benefit that you should enjoy having as a little help during all day tennis matches or such,

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  • Charles L.
  • 11/14/2013 3:43:58 PM
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggs

Pros: Only had it for a little while, but seems good so far. Charged up quickly with USB (2.0 even) but I havent tried the solar polar yet.

Cons: All kinds of cords and attachments and stuff that I have to keep in a bag somewhere. Not much you can do about that I guess though.

0 out of 2 people found this review helpful. Did you? Yes No

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Item#: 9SIA04D0GS0965
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