La Crosse Technology BC-9009 AlphaPower Battery Charger (Discontinued by Manufacturer)
We don't know when or if this item will be back in stock.
- Battery charger for NiCd and NiMH AA and AAA rechargeable batteries
- New overheat detection protects against overcharging; Individual LCD displays for each charging compartment
- 4 operating modes--Charge, Discharge, Refresh, and Test
- Includes 4 AA and 4 AAA rechargeable batteries, 4 C- and 4 D-size battery adapters, and a travel bag
- Measures 5 by 3 by 1-1/2 inches; 1-year limited warranty
Customers who viewed this item also viewed
What other items do customers buy after viewing this item?
Have a question?
Find answers in product info, Q&As, reviews
Please make sure that you are posting in the form of a question.
Be charged and ready to go with La Crosse Technology’s BC9009 portable battery charger. Optimum simultaneous charging of AA & AAA batteries with separate cell display. Automatically defaults to 200ma charge and won’t overcharge, as the LCD displays voltage, charging current, charging percentage, and cumulative capacity for each cell compartment. Also, detects a defective battery from charging and works with all NiCd & NiMH AA and AAA rechargeable batteries. The previous version of this battery charger had known issues with the adaptor. This version comes with the new upgraded adaptor featuring overheat detection to protect against overcharging.
Top customer reviews
I haven't bought a disposable AA or AAA battery in 8 years. The La Crosse charger has paid for itself many times over. I'm not sure how many rechargeable batteries we have in the house: remote controls, radios, flashlights, lanterns, whatever. They all use rechargeable batteries, and they all go in the La Crosse charger. It performs flawlessly. AAAs charge in a few hours, AAs overnight.
Disposable batteries are a total rip off. The La Crosse charger does exactly what you expect -- stick in a bunch a dead batteries, come back later and you've got 4 fully charged batteries ready to go. In all these years, I've only had 1 or 2 batteries fail to take a charge. All the others just keep on going.
For what it's worth, I have more batteries than I need at any one time. There are always 4+ fully charged AAs and 4+ fully charged AAAs in the drawer, ready to go. When a set of batteries give out, I've got new batteries ready to drop in. And the used ones go into the La Crosse charger. When they're fully charged, they go in the drawer to wait their turn.
The La Crosse charger is one of my all-time favorite purchases.
Why write the review now? Because it works just like the day I bought it - and I use it VERY frequently. I charge Eneloops, Energizers, Sonys.... you name it, this charger has charged it.
Two things - I always discharge my batteries before charging (mode #2), and for AAA batteries I do not use the default 500 / 200 discharge / charge cycle... I cycle it down to the 200 / 100 mode as for triple AAA the default is too high and more suitable for AA batteries.
Finally, the refresh cycle on this charge really works well. I am still using a few 10 year old Energizer rechargeables, and it always seems to get more life out of them. I attribute the long life of these Energizers - and all my batteries - to this charger. All my batteries have very long lives and go through many charge / discharge cycles. It is rare I ever throw a battery away!!
I am not sure how well the newer version of this charger works, but I am here to tell you the older version (this one) works very well - and it obviously lasts a long time. When I saw I had not written a review for this product, I had to share!!
Thanks for reading!
My old BC-900 has served me well for the past 4 years. But recenetly there is an inrush of reports on 'meltdown' of the new BC-9009. I can only assume that La Crosse is having very poor quality control with the new model. My advice is to stay away from BC-9009 for now, until the situation has been rectified.
[Update on Apr 15, 2010]
The BC-9009 is available through Amazon again. But of course it will take a few more weeks before we can be sure if the overheating problem has been fixed. If any brave soul decide to order one to try out, I encourage you to exercise the charger fully (Refresh at the 1A current setting) for a few days, and watch for any signs of overheating (such as hot-spot on the base of the charger). Make sure to let us know the outcome.
[Update on Jan 22, 2011]
If you have purchased the BC-9009 recently, make sure it has the latest firmware version '37' (this number appears briefly in the rightmost column when you first plug in the AC adapter). Several users have reported that they have no overheating problems with this new version, even though the AC adapter has the same 'IV' marking.
[Original review follows]
I have a La Crosse Technology BC-900 AlphaPower Battery Charger since nearly two years ago, and I'm very happy with it. When the Maha Powerex MH-C9000 WizardOne Charger-Analyzer was announced, its looked even better on paper than the BC-900. So I also bought the C9000 one month ago. Here is my assessment for those two chargers:
First, let's get the similarities out of the way. Both the BC-900 and the C9000 are powerful battery analyzers/conditioners which can also be used as your everyday battery chargers. Both chargers accept one to four AA or AAA cells with independent charging currents. Both come with universal (100-240V AC) adapter.
Next, the differences:
First thing you'll notice is that the Maha C9000 is HUGE for a 4-AA-cell charger. It is about twice as large as the BC-900 (see my Customer Image for size comparison).
Larger size makes the C9000 less suitable as a travel charger. However, as a home charger this is actually an advantage. Extra spacing between cells allows better cooling, and also makes it easier to remove individual cell.
2. CHARGING CURRENT:
The BC-900 can provide charging current from 200 to 1000mA for 4 cells, or up to 1800mA for two cells. The C9000 can charge from 200 to 2000mA for all four cells. So if you routinely need to charge cells in a hurry, the C9000 is better.
However, due to the complicated key sequences involved (for example, to charge 4 cells at 2000mA, you need to punch in 48 key strokes!), most sane people will probably leave the C9000 at its default current of 1000mA.
The BC-900 has a 4-column LCD panel that shows the status (capacity, voltage, current, or time) of all four cells either simultaneously, or individually. The C9000 sports a LCD display with back-light. It is BIG, it is BRIGHT, and it works really well - as a NIGHT LIGHT!
The biggest problem with the C9000's display is that it can only show one status for one cell at any one time. It constantly toggles from one status to another, then from one cell to the next. If you have 4 cells in the charger, it takes 48 seconds or more (depending on the current activity) for the display to cycle through all 4 cells. There is also no way to pause the display. So if you missed one reading, you have to wait for it to cycle through again.
4. ANALYZING / CONDITIONING FUNCTIONS:
The BC-900 has an easy-to-use 'DISCHARGE/REFRESH' function that can be used to recondition old cells. The C9000 has a similar function called 'CYCLE', but it is very tedious to use (see the USER INTERFACE section for details).
In addition, the C9000 also has a 'BREAK-IN' mode which supposedly should be applied to new cells before first use, or to really old cells that have not been charged for years. Beware that this operation takes at least 39 hours to complete, so I doubt many people would actually use it.
5. DEAD CELL DETECTION:
If a cell is completely drained (battery terminal voltage drops below 0.5V), the BC-900 thinks it is shorted and therefore refuses to charge it. This has caused a lot of frustrations among users, but there is a way to work around it (see my BC-900 Customer Image for details). The C9000 is smarter in this aspect. If the battery terminal voltage is too low, it automatically starts charging at 125mA until the voltage rises above 1V, then it continues with the programmed charging current.
The C9000 also measures battery internal resistance when a cell is first inserted. If the user inserts an alkaline cell (which has much higher internal resistance), the C9000 displays 'HIGH' and refuses to charge it. This is a good safety feature, except that it also incorrectly rejected most of my NiMH cells bought four or five years ago. So I cannot use the C9000 to charge or recondition those old cells, even though the BC-900 reports that they still have around 1000mAh of capacity left.
6. USER INTERFACE:
With the BC-900, you can select the operation and current for all cells simultaneously, or you can change them indivdually by using the cell-selection buttons. The only limitation is that once the charging current is fixed, you cannot subsequently select a larger current without removing all cells.
The C9000 has four completely independent charging circuits that can be programmed to different currents. This may sound great at first, but in practice it soon becomes a burden, because you often need to press dozens of key stokes to program all four cells.
For example: If you want to recondition four cells on the BC-900, you'll go through the following sequence:
- insert in all 4 cells at once
- press MODE to select DISCHARGE/REFRESH (2 keystrokes*)
- press CURRENT to select charging current (2-3 keystrokes)
* Note: need to press and hold MODE for ~3 seconds for the first keystroke
On the C9000, you can insert in all 4 cells at once, but you have to program them one at a time. Which means:
- press UP/DOWN to select 'CYCLE', then 'ENTER' (2-5 key strokes)
- press UP/DOWN to select charging current, ENTER (1-11 key strokes)
- press UP/DOWN to select discharging current, ENTER (1-6 key strokes)
- press UP/DOWN to select number of cycles, ENTER (1-13 key strokes)
Congratulations! You just finished programming the first cell. Now repeat that for the other three cells.
The Maha MH-C9000 is, without a doubt, the most powerful NiMH AA battery analyzer/charger in the consumer market. However, certain design issues (such as a single-status LCD panel and ridiculously long programming sequences) make it difficult to use for multiple cells. For most of my routine charging and maintenance of NiMH cells, I'll continue to use my old La Crosse BC-900.
Nevertheless, I don't regret buying the C9000, because it was a lot of fun for me to try out all its functions. Plus I now have a really cool (but expensive) night light.
The only thing that wasn't good about it was the batteries that came with it. Those were from the days before low self discharge batteries were commonplace, and they eventually went flat from disuse. I didn't have much of a need for them at the time and don't use non lsd batteries anymore, so that's why it's still 5 stars.
Most recent customer reviews
I love the fact that I can choose the charge rate from a trickle to a very fast, high rate charge...Read more