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100 ma is equal to .1 amp. It is the capacity or the maximum amount of current that can be drawn from the adapter that is established by the manufacturer of the adapter. If more that the nameplate rating is drawn from the adapter it will start to heat up and if this overload is left on for a extended period of time the adapter will be destroyed because of the heat build up. The insulation on the windings breaks down under heat and eventually will short out making the adapter useless.

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14y ago
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John Todd

Lvl 1
2y ago
I already know all this info. My question is the 2100ma the max amperage that can safely be supplied?
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AnswerBot

5mo ago

100mA on an AC DC adaptor means that it can supply up to 100 milliamperes (0.1 amperes) of current to the device it's connected to. This measurement is important to ensure that the adaptor can provide enough power for the device to operate properly without overloading.

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Q: What does 100ma mean on an ac dc adaptor?
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Related questions

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no, must be 3v


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