Black & Decker CP120B 20-Watt Power Backup Battery Pack Review

Average Reviews:

(More customer reviews)Ok, I give it 5 stars although out of four I bought, two would not charge properly, but at 3.99 it was worth the extra effort to get them going.Here is the problem with some of these, the batteries have been sitting a while, so after you charge it for a few minutes, some of these may show they are charged, even though they are not.The batteries need to be cycled in these and all of mine have come back to life.Here is what you can do to help bring them back...

1) Charge unit until LED goes green (with a battery that needs to be cycled, it may show its charged after a few minutes.With battery that is in good shape and being dead, it should take around 4 hours to charge)
2) Unplug charger and turn on unit.It may go dead after a few minutes, thats OK.After it shuts itself off, wait 10 minutes.

Repeat the steps above and it should come back to life.The most I repeated the above steps were 4 times before it accepted a full charge, and all mine work now.Hope this helps someone if theirs does not take a proper charge...

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Product Description:
Black & Decker introduces the new Pocket Power, a compact portable source with rechargeable backup battery that powers and recharges personal electronics while on the go. The new Pocket Power simultaneously powers and recharges mobile electronic devices such as cell phones, BlackBerry/PDAs, MP3-like devices, digital cameras, camcorders and more when a household AC power outlet is not available. The Pocket Power will provide up to five hours extended runtime for personal electronics. With its slim profile design the Pocket Power is thin enough to conveniently fit into an average size jacket pocket, or be tucked away into a briefcase or purse. Take the Pocket Power with you on business or away from home to have the confidence and convenience of power when you need it for your portable personal electronics. The Pocket Power battery fully recharges from a 120-volt household outlet in less than eight hours. A battery status LED lets you know 10 minutes before the Pocket Power battery is depleted and needs to be recharged. A built-in power/fault LED indicates the condition of the inverter. A draw-string travel bag keeps the Pocket Power protected while traveling

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Music Power 0900-72 Encore Dual Port USB AC Charger with Rechargeable Extended Battery Review

Average Reviews:

(More customer reviews)The features are excellent, two USB chargers plus battery for recharging without AC.The wall charger works as expected, allowing 2 USB devices to charge, so no waiting for one to finish before plugging in the other. I use this nightly to charge up my mobile phone and Bluetooth headset.The battery does not list it's capacity, not in the documentation and not even on the battery itself.This makes one question how weak it is. I let my phone go completely dead and was able to bring it to a full charge using only the battery, but only once. The battery in the Encore had no juice left, so it is pretty low capacity. Most USB battery based changers can push 2 or 3 recharges, this can do only one.It did work though, so it can help while in the field or airplane. I wish the battery capacity were higher, and wish it was better built (it just feels cheap and cheesy) but the features are good.So far, it does what it says.

EDIT: September 2008
It's been just over a year now.This unit travelled with me for most of that time.It just DIED.It will no longer charge the internal battery, and it will no longer charge either of the 2 USB devices able to be attached to it, even when plugged into the wall.Nothing, completely dead.(NOTE: The battery is fine, it can be charged by another charger, but not this device...)I suspect it is out of warranty as well.What was that about marginal execution?Perhaps that was a bit too generous.(Still great features, maybe a less than marginal execution)

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Product Description:
Wireless Portable Power & 2 power sources in 1!Power up your USB chargeable device when an outlet or computer is unavailable.Built-in rechargeable extended battery - Keeps the video & music playing longer - provides power when you have none!Includes 2 USB ports to charge iPods, Zune, Blackberrys and more.

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Tekkeon TekCharge Mobile Power and Battery Charger Review

Average Reviews:

(More customer reviews)I've been using this for several months, and more than once it has paid for itself. It is small, lightweight, and has done everything I need it to.

I get several full phone recharges out of a set of four AA batteries, as compared to about one 85% charge from the Eveready? Energizer? Energi To Go™ Instant Cell Phone Chargers charger (although I suspect that the energizer was eating my batteries if I left them in there for more than a day.)

This unit does not discharge batteries no longer how long you leave them in there, so pairing it up with low self-discharge batteries is beneficial. You'll forget you have it until you need it!VIDEO REVIEW TRANSCRIPT:

This is the TekCharge MP1550 mobile power supply and battery charger. This unit allows you to transfer power from standard AA batteries to USB power, and also will allow you to charge rechargeable AA batteries From USB power in an emergency.
This allows you to carry emergency power for cellphones, mp3 players, or anything else which can be charged from a USB port or cable. The maximum output voltage is 5v. You can use either standard alkaline AAs, or use rechargeables to power the unit.
The device is very small and compact, only a little larger than the batteries it contains.

The device comes with a charging cable and several interchangeable tips. The retractable cable on mine arrived frayed to the point where I don't think I could depend on it to work when I need it to.You can see the stray wires poking out from the wire sheath. I could have returned the unit, but I've never had good luck with "one size fits all" cables, and therefore probably wouldn't use it anyway.I bought the cables I need from my favorite auction website.For me, a six inch USB to mini-USB cable will do 85% of what I bought the unit for.A Standard USB A to B cable will do everything else.
The unit outputs power through a standard 5V USB plug. Any device I can think of with a USB charger can be plugged in and receive power through this port. There is an "ON/OFF" switch next to the plug, which controls whether a device is receiving power.There are also several indicator lights on the front of the unit which show how much power is left in the batteries.
The unit will run off of either 2 or 4 AA batteries.I would recommend using four whenever possible, as the lower discharge rate on each battery will mean you get more total power from each cell, as compared to using two at a time.However, it is nice to know that if I need to scavenge two batteries from the charger in an emergency, I will still be able to recharge my phone using the other two cells.
Beside the output USB Jack is a mini-USB Jack labeled "5V in". This is the jack which you can use to charge rechargeable batteries without removing them from the unit.The manual states that the unit will fully charge two batteries in three hours, or four batteries in six hours. It also strongly recommends to recharge batteries only when they are completely empty, so the charging function shouldn't be used to "top off" batteries which are only partially discharged.
I use low-self-discharge batteries, and use a separate Lacrosse BC-900 series charger to keep my batteries well maintained.
The Tekcharge unit does not appear to drain the batteries when it is not in use, which the "energizer" brand AA recharger seemed to do. Also, I get more power out of each cell as a result of the lower discharge rate associated with drawing the power from four cells instead of two.The battery compartment is also much easier to open than the energizer model, which often got stuck or jammed.However, to open the battery compartment you have to push down on the lever next to the USB jack. This is not indicated on the unit, although the manual does clearly state it.
Overall, I am extremely pleased with this unit. It does exactly what it advertised, and feels well built.Again, the cable arrived frayed from the factory, but I would have thrown it away even if it was in good condition. However, for those who prefer playing with interchangeable heads, it would have been an issue.I am pretty confident that it was an isolated problem, and I'll bet customer service would have replaced it had I felt the need to contact them over it.
I keep this unit in my backpack, and it's nice to know that I have two weeks or more of power for my cell phone if I get stuck somewhere without my charger, along with a means of recharging batteries away from home.

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Product Description:
TekCharge MP1550 takes advantage of AA batteries to provide emergency power to popular mobile phones, plus many more small portable devices. Because TekCharge uses alkaline or rechargeable AA batteries, you'll never be without power again--even on the road. TekCharge also doubles as a battery charger for your rechargeable AA batteries, so you can stay green while staying charged.
TekCharge charges and powers portable devices--anywhere, anytime--making it a versatile solution for the power needs of most of your mobile products, on the road, and at home. Often, portable devices are in need of recharging after a few hours of use. With TekCharge, you can enjoy hours of extended play time on your mobile phones, smart phones, PDAs, iPhone, iPods and MP3 players, portable CD players, Bluetooth headsets, and other small portable electronic products.
TekCharge connects to your device in two ways: First, you can use an adapter to connect to your device; or second, you can use your USB device cable, bypassing the need for an extra adapter. The device also features a voltage regulator so it won't harm your device or its battery.TekCharge comes with a handy tote, plus seven adapter tips for connection to:

Blackberry (mini USB)
LG mobile phones
Motorola mobile phones (mini USB)
Nokia mobile phones
Samsung mobile phones
Sony Ericsson mobile phones
iPod/iPhone (using your own iPod USB cable)

Add-on adapters are also available for Bluetooth headsets, other mobile phones, MP3 players, PDAs, portable games, and portable media players.
Approximate Charge for Common Devices

Portable DevicePower on the Go Mobile phones 12 hours of talk time Smart phones 8 hours of talk time PDAs 5 hrs Portable media players 5 hours of playback Bluetooth headsets 50 hours of talk time MP3 players 28 hours of audio playback iPhone28 hours of audio playback,
8 hours of video playback iPod touch 32 hours of audio playback,
11 hours of video playback iPod classic 118 hours of audio playback,
20 hours of video playback Zune 125 hours of audio playback,
17 hours of video playback
*Hours shown are approximate and will vary depending on connected device.
What's in the Box
TekCharge MP1550, Retractable input/output cable, Universal adapter kit (7 tips), User guide

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