Propz Me Science DURACELL CEF21 PDF


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.

Author: Jule Ninris
Country: Tunisia
Language: English (Spanish)
Genre: Environment
Published (Last): 28 August 2016
Pages: 277
PDF File Size: 8.34 Mb
ePub File Size: 1.8 Mb
ISBN: 677-1-88634-495-3
Downloads: 67581
Price: Free* [*Free Regsitration Required]
Uploader: Tauzil

It’s a normal rechargeable battery which is already charged when you buy it.

Learn More – opens in a new window or tab Any international shipping is paid in part to Pitney Bowes Inc. Transcend Media Questions. When an AA cell is being charged the AAA pad will be at equal potential and the voltage difference will be zero.

Last edited by PeAK; at I can test this perhaps with a meter later. I’m running the charger disassembled at the moment and using jump leads to connect from the charger to the battery. I would hazard a guess that the current comes from the AA terminal to the AAA terminal through the resistor.

The first is the basic image, and the second has the AAA cell detection circuits traced out: Please assign your manual to a product: Sell now – Have one to sell? This latter voltage matches exactly what I observe from Eneloops and not from any other cell I have tested. Aarrgh, let’s call the whole thing off! Learn More – opens in a new window or tab International shipping and import charges paid to Pitney Bowes Inc.

The charge stays in the battery longer than a normal When I insert some batteries the red light begins blinking.


Energizer batteries I had some energizer batteries in a toy that I had. See full item description. See all condition definitions – opens in a new window or tab. PDF Manual Keb drive. How about if I just connect pin 5 directly to ground?

In each vef21 there seems to be a thick current supply trace leading to the AA connector, and one thin voltage sensing? I have to write all of this, because recently, people want to haggle after a sale. Is there a compatible Duracell battery or a store within 5 miles of Your opinion is valuable. Seller information 0rquita Special financing available Select PayPal Credit at checkout to have the option to pay over time.

Other than those small flaws, this charger is well-made and serves a good purpose. I’m not sure what went wrong; maybe my shorting lead was too long and too high resistance. This feature is also very useful. It might be an idea to monitor the voltage across “the resistor” when charging a AA battery and also when charging an AAA battery to validate some of the above assumptions about the current traversing it.

duracell battery recharger instructions

Here are high resolution images of each side of the circuit board to help with following the traces: And until this moment,the compact charger from Energizer is still working well. Somehow the circuit seems to be detecting which charging post is in use regardless of my attempt to electrically join the AA and AAA posts. This causes a negative difference across the comparator and forces its output low.

Just in case anyone reading this thread is considering the same modification, I’m not sure you have picked out the correct resistors? It sure is a durable and efficient battery around and works long really long. Well, my attempted modifications are failing I have tried two different methods of temporarily connecting the AA post to the AAA post. We can only provide support Flashes once, then no light no matter how often you press the button on the end.


duracell cef21 Questions & Answers (with Pictures) – Fixya

It allows you to plug ipods or other USB-powered devices into the charger to be charged. Deltona, Florida, United States. I also feel an inclination to bypass the 0.

durafell Seller assumes all responsibility for this listing. The thinness of the plate, can connect four devices at once. They only ended up lasting for about two weeks. 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 longer.

Duracell Power Gauge CEF21 mod for improved charging of AAA cells

I’ve made these pictures as large as forum guidelines allow. Duracell Alkaline D Batteries I’ve been using Duracell batteries for years now, and all I really have to say is that there is darn good reason that the brand is recognized as one of the big name battery brands durcell Energizer, Rayovac, et al. Duracell flashes once.

Hello there, According to this sheet. I found that the charger flashed the error indicator and refused to accept it. I’m trying to follow where those traces go.