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Sony Quick Battery Charger with 4 AA Ni-MH Rechargeable Batteries (Discontinued by Manufacturer)

by Sony
552 customer reviews
| 23 answered questions

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  • Charges four AA and AAA batteries at a time
  • Unviersal voltage from 100-240V
  • Alkaline battery detection, temperature and voltage safety controls
  • Includes four 2500mAh NiMH batteries
1 used from $20.00

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Technical Details

  • Brand Name: Sony
  • Model Number: BCG-34HE4
  • Battery Type: NiMh
  • Item Package Quantity: 1

Product Description

Sony's worldwide reputation for creating unique, attractive, high-quality, advanced technology products rests on a long line of innovations embraced by people from all walks of life. With a diverse product lineup serving a variety of lifestyles and industries, Sony continuously strives to introduce new products and technologies to meet changing market needs.

Product Details

  • Product Dimensions: 5.5 x 7.5 x 1 inches
  • Shipping Weight: 7.2 ounces
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B0002IWC9C
  • Item model number: BCG-34HE4
  • Average Customer Review: 4.3 out of 5 stars  See all reviews (552 customer reviews)
  • Amazon Best Sellers Rank:
  • Product Warranty: For warranty information about this product, please click here
  • Date first available at May 23, 2006

Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

972 of 987 people found the following review helpful By Hyun Yu VINE VOICE on September 15, 2004
Verified Purchase
It doesn't say so in the product description page here anywhere (and I can't even find this charger on the Sony website), so here you go: it takes about 4.5 hours to fully charge the four 2300mAh batteries that come with the charger. Which I kinda like--I like that it's not a dumb charger (timed charger w/o regard for existing charge or overcharge) like the cheaper Sony charger here on (BCG-34HLD4), nor does it take inordinately long (some others I checked out take as long as 8-12 hours), but it's not a superfast 1-hour charger that super-heats up the batteries during the charge (and potentially reduce the battery service life).

The charger has the outlet plugs built-in, so there is no separate AC adapter. Be sure to keep the charger bay door open during charging to help dissipate the heat.

The batteries are Sanyo-brand ("HR" imprint on them) marketed under the Sony label.

Overall, a nice, compact unit. I recommend it.
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671 of 682 people found the following review helpful By A. Alkins on December 15, 2004
This is a very cost effective battery charger. It's a simple flip top design and can charge either four AA or two AAA (You CAN mix them, however you can only charge a maximum of two AAAs at a time). Charge time is generally just over four hours if you charge all four AAs and half that with only two. AAA batteries charge in about an hour and a half by themselves, two hours if paired with AAs.

The charger cuts power to the batteries when they're full. This is a MUST feature as it preserves your battery life extraordinarily. It also is switching (100/240V) meaning you can use it outside the US without hassle (Most of Europe uses 220V). The charger comes bundled with four AA batteries with a 2300mAh capacity which is above standard and last longer. If you have batteries under 2300mAh, this charger can still charge them and cut off the power when necessary (The batteries must be NiMH however).

My only complaint with this would be the fact that the charger just has a flip up/down plug. If you have plugs sitting side by side facing downwards, the charger will occupy three slots. On a standard wall plug (Side by side with the plugs lying horizontal) it only takes up one plug however. You can easily overcome this by using an extension if needed.

All in all, I can 100% recommend this charger. There's another Sony charger slightly cheaper than this one (the BCG-34HLD4). However, pay the extra couple bucks and get this one as the other does not have a power cut off feature. If you need AAA batteries, get the Sony AAA two pack (Model NH-AAA-B2C, Amazon carries them) which are 800mAh.
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125 of 126 people found the following review helpful By NLee the Engineer HALL OF FAMETOP 50 REVIEWER on February 5, 2007
There is an important feature for this charger (Sony BCG-34HE) that makes it an excellent buy: it charges each cell individualy.

Most low-cost slow chargers force you to charge cells in pairs. That is, either 2 or 4 cells. This smart charger allows you to put in 1, 2, 3 or 4 cells at any time. Each cell is charged individually and stopped whenever it gets full. The only problem is that the indicator lamp only changes color when ALL cells are fully charged. So even if three out of four cells are ready, you cannot start using any of them until the last one is done.

Why is charging NiMH cells in pairs a very bad idea? Beacuse no two cells have identical capacities. Even if you start with two new cells of the same brand, their capacities will drift apart after several cycles. When you charge two cells in series, the one with lower capacity will be over-charged, and this will only accelerate the disparity in capacity next time. Eventually you'll end up with cells that can only deliver a fraction of their rated capacities.

Then there's always the problem when your application requires either one or three cells. Now you are left with one drained cell that you cannot charge. If you try to charge a drained cell in series with a full one, the latter will be badly over-charged and may even be damaged from over-heating.

While I'm at it: here are the charging currents for this charger:

- One to two AA cells: 1050mA each
- Four AA cells: 525mA each
- One to two AAA cells: 640mA each

[Update on Nov 22, 2008]
I need to clear up a possible source of confusion here. SONY makes several AA/AAA battery chargers, and their names all start with "BCG-34H".
Read more ›
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36 of 37 people found the following review helpful By JustAnotherEngineer on March 18, 2006
This Sony Charger replaces the Walmart Special I bought for $10. The Walmart batteries lasted less then 10 charges. I'd recommend you purchase an additional set of 4 Sony (2500mah)batteries when you purchase this unit. That will give you a total of 8 batteries. This charger also detects failed batteries (like my Walmart ones) and can charge from 1 to 4 batteries at a time. Also, somewhat unique, is that it has a refresh cycle to recondition batteries that have developed some "memory" and aren't holding a full charge as well as they once did. You'll need 4 to 5 hours for a full charge but if you buy a second set of 4 batteries for about $11.00, the time needed for a recharge really becomes academic. The charger clearly displays the status of each battery through its charge cycle. Really a well thought out device.
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