Bones
Enlightened
Is the CEF23DX4 the same thing?
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The Duracell Mobile charger's base model number appears to CEF23, with different extensions denoting various bundles. For example, model number CEF23DX4N appears to include 2 AA and 2 AAA pre-charged cells and an auto-adapter.
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Also what is so special about the mobile charger?
It has fully independent charging channels, it charges at an inherently benign rate and, most importantly, it knows when to quit.
It also has an internal 100-240V switching power supply with a folding plug, it can be operated from a 12V DC power supply, it has a quasi-intelligent LED for each of its four charging channels, and it can function as a mobile booster via its on-board USB-A port.