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Details about  2-Pack C & D Cell to AA Battery Adapter Charge Test C&D in BT-C2000 BM200 More

2-Pack C & D Cell to AA Battery Adapter Charge Test C&D in BT-C2000 BM200 More
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Item Information

Item condition:
New
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25 available / 90 sold
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Price:
US $9.98
Approximately C $10.92(including shipping)
 
38 watchers
 
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Limited quantity remaining
More than 78% Sold
Shipping:
US $8.80 (approx. C $9.63) USPS First Class Mail Intl / First Class Package Intl Service | See details
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Item location:
Sacramento, California, United States
 
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Worldwide See exclusions
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International shipping and import charges paid to Pitney Bowes Inc. Learn More- opens in a new window or tab
Returns:
14 day money back, buyer pays return shipping See details
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eBay item number:
321206053017
Seller assumes all responsibility for this listing.
Last updated on  Aug 09, 2014 13:08:34 EDT  View all revisions

Item specifics

Condition:
New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ... Read moreabout the condition
Compatible Battery Type(s):

C / D

Product Type:

Battery Adapter

Number of Batteries Included:

None

C and D to AA Cell Adapter for Battery Chargers

BT-C2000 and BM200 Chargers



















Now you can charge and test C and D cells with your BT-C2000 or BM200 charger.

For so long I have wanted to test C and D NiMH cells. Now a plug and play solution. The Opus BT-C2000 charger will charge and test high capacity cells up to 20,000 mAh. The later version of the BM200 charger has similar firmware to charge and test cells up to 20,000 mAh. Using these C or D to AA cell adapters you can now test your high capacity C and D NiMH cells. Simpley insert the adapters into slots 1 and 4. Put in your batteries to test. Select the Charge/Test function with appropriate current selections. The rest is automatic. At the end of the test the charger will report tested capacity of that cell. Group your batteries by tested capacity to ensure you will get the performance you expect from your batteries in the field. Find out if a cell is no longer useable. Cycle the cell several times to return it to full capacity. You have those options with these battery adapters.


The adapter will fit other chargers with a test function like the La Crosse BC-700, BC-900, BC-9009, BC-1000, Technoline BC-700 and AccuPower IQ328 however these chargers have firmware limitations that do not allow the testing of high capacity cells.  The adapters can not be used to test or charge high capacity C and D cells in those chargers.


     

I am getting asked many questions about use in the PowerEx MH-C9000 charger. After extensive testing it is a mechanical fit issue. The srping pressure on the negative contact is not sufficient to provide good contact resistance on the adapter. Also the positive contact is landing on the smooth area in the C9000 charger contact. That contributes to contact resistance. The ability of the adapter to move when seated in the charger is also an issue. The adapters appear to work in about 80% of the C9000 chargers tested. However factors such as how the adapter is seated for charging and testing change the contact resistance and the results of charging and testing. Therefore the adapter is not guaranteed to work in the C9000.

The adapters are designed for the BT-C2000. They fit perfectly in that charger with no issues.

Beware of other adapters being sold on ebay. There are differences from the adapters sold here. Said vendors even copied text from my listings to flog their horse. The text copied is incorrect and those adapters are a worse fit in the C9000 charger. Buyer beware. Things from afar are not always what they proclaim to be. I stand behind all products that I sell and will resolve all issues. 


Dimensions:


Length; 75mm

Width; 45mm


Each Adapter will hold one C size or one D size cell.

Adapt to standard AA size cell for testing and charging.


Included two C&D to AA adapter in retail box.






 

Chargers that can test batteries.

Say you purchase some batteries that are billed as the latest and greatest AA 3000 mAh batteries. How do you know?? Most major brands are very good about rating their batteries, they supply standard data sheets on their web site. However there are manufacturers and retailers that flat out lie about the capacity of batteries. So how can you tell if you are getting ripped off. Get a charger that can actually test batteries for capacity.

First a bit about battery capacity. Capacity rating is usually given in Ah or mAh (Ah - amp hours or mAh - miliamp hours) and is an indication of how much energy is usable from the battery. An example, if we have an AA cell rated at 2500 mAh it means that battery could supply a 2.5 Amp load (2500 mA) for a time of one hour. Or it could supply a 500 mA load for a time of 5 hours. Approximately. So capacity is an indication of how much work you can do with your batteries.

There are chargers that can test your batteries for the actual capacity, as opposed to what is claimed by the manufacturer or retailer. To do this all of these chargers perform the following cycle; put a full charge on the batteries, then perform a controlled discharge while measuring how much energy is obtained from the battery, then perform a full charge again. At the end of the cycle the tested capacity is displayed on the control panel of the charger. If you are serious about getting the best performance from your batteries then this kind of charger is a must have. It is the only way you will know for sure the state of your batteries.

These kind of chargers usually have other functions that are useful such as break-in and recondition cycles. Names and details differ but the ability to test is the same in all of them. Some have better capability and controls than others but the ones listed here will all do the basic job of testing batteries for actual capacity.

Shown in table form with basic parameters.

Brand Max Charge Current
Max Discharge Current
Max Testable Capacity
PowerEx C9000
2000 mA
1000 mA
19.99 Ah   (19,990 mAh)
Opus BT-C2000
1000 mA (1400 mA for 2 cells)
500 mA
20.00 Ah   (20,000 mAh)
BM200
1000 mA (1400 mA for 2 Cells)
500 mA
20.00 Ah   (20,000 mAh)
AccuPower IQ328
1000 mA (1800 mA for 2 Cells)
500 mA 3500 mAh
La Crosse BC-1000
1000 mA (1800 mA for 2 Cells)
500 mA 3000 mAh
La Crosse BC-9009
1000 mA (1800 mA for 2 Cells)
500 mA 3000 mAh
La Crosse BC-700
700 mA
350 mA
3000 mAh
La Crosse BC-500
500 mA
250 mA
3000 mAh


As you can see the PowerEx C9000 is by far the most capable charger/analyzer in this group. It also has the best build quality and provides the best cooling situation for the batteries under test. The charge and discharge functions are programmable in 100 mA increments. 

The BM200 is a capable charger. It has good space for cooling the batteries under test. The charge rate is programmable in 200 mA increments. However the discharge rate is fixed at half the charge rate with maximum of 500 mA. Testable capacity up to 20,000 mAh. This charger also has a test for battery internal resistance. This can be a useful test for some applications.

The AccuPower IQ328 is more compact, gives less cooling air to the batteries. The charge rate has 4 settings, 200 mA, 500 mA, 700 mA and 1000 mA. The discharge current is fixed at half the charge current. Maximum testable capacity is 3500 mAh. A capable charger and good value.

The La Crosse BC-1000 and BC-9009 are identical, except for the color of the case. Take off the case and the circuits boards are identical, as is the firmware revision. La Crosse just put a new case on the BC-9009 and changed the name. These two chargers have the same electrical specifications as the AccuPower IQ328. Four charge current settings, 200 mA, 500 mA, 700 mA and 1000 mA. Discharge current is fixed at half the charge current. However firmware restricts testable capacity to 3000 mAh.

The La Crosse BC-700 is just like the BC-1000 except it has only three current setting, 200 mA, 500 mA and 700 mA. Discharge current is fixed at half the charge current. 3000 mAh max testable capacity.

The La Crosse BC-500 is the most limited. The display is limited in the information it can display and charge current is 200 mA or 500 mA. It has only one function button and is a bit harder to program and use for test purposes. If is a fine charger but not a good choice for testing batteries.



 

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Returns accepted within 14 days.
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For defective items the manufacturers waranty applies. However assistance with manufacturer warranty service is offered within 30 days of purchase.

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