Operating instruction for the Duracell CEF14AU NiMH Battery Charger. Two Charging Channel. • 2 or 4 cell charging in combined slots (labeled). Bi- color Charging Status LED Indicator. • Red = Charging. • Green = Complete. Find solutions to your duracell cef21 question. Get free help, tips & support from top experts on duracell cef21 related issues.

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Then pinch each iron on either side of the two ends of the surface mount 10K resistor and lift simultaneously.

When an AA cell is being charged the AAA pad will be at equal potential and the voltage difference will be zero. Other offers may also be available. This feature is also very useful. The charge stays in the battery longer than a normal Back to home page Return to top. The data sheet says that all unused pins should be tied to the negative supply so this should be safe and harmless to do. Delivery time is estimated using our proprietary method which is based on the buyer’s proximity to the item location, the shipping service selected, the seller’s shipping history, and other factors.

This is consistent in all four banks. Even so, this is not getting the charging current to rise much above mA when connecting a cell directly to the Duradell post.

When an AAA cell is being charged the charging current will pass through the resistor producing a voltage drop of mA x 0. Aarrgh, let’s call the whole thing off! What the circuit is doing such that it seems almost entirely insensitive to furacell resistance between the AA and AAA posts is a mystery.


Duracell Charger –

Well, my attempted modifications are failing Durscell have tried two different methods of temporarily connecting the AA post to the AAA post. Deltona, Florida, United States. Add to watch list. United States and many other countries See details. This item will ship to United Statesbut the seller has not specified shipping options. Doesn’t work in any of the three modes.

While my meter sees steady voltages, the current through the cell appears to be pulsed and the meter doesn’t respond fast enough to catch the values. It’s not easy when they keep jumping from one side of the board to the other. To Buy or Not to Buy? Flashes once, then no light cdf21 matter how often you press the button on the end.

duracell battery recharger instructions

I have circled my picks in the image below. Future repairs, if any, are to be taken care of by you.

Related to temperature sensing the CEF21 has a temperature sensor durxcell inside each negative post right where it touches the battery and far away from heat generating components in the power supply.

Please enter a number less than or equal to 1. Thank you, nice diagrams. Not finding what you are looking for? This amount is subject to change until you make payment. Email to friends Share on Facebook – opens in a new window or tab Dduracell on Twitter – opens in a new window or tab Share on Pinterest – opens in a new window or tab. Add to watch list Remove from watch list.


The toy does use a lot of the energy from the batteries and I used it a lot but I still feel like the batteries should last cef2. Please assign your manual to a product: I also have some Duracell s that appear to be charging but when I place them in the appliance they are dead.

Current measurements are difficult. Learn More – opens in a new window or tab Any international shipping and import charges are paid in part to Pitney Bowes Inc.

Duracell NiMH AA and AAA Battery Charger Model CEF21 | eBay

I can do this with a simple piece of wire which is easier for me to solder than a resistor, and it should force the output to logic low at all times.

Have you looked in the manual? Email to friends Share on Facebook – opens in a new window or tab Share on Twitter – opens in a new window or tab Share on Pinterest – opens in a new window or tab Add to watch list.