I can do that by putting 2 lantern batteries in series, but I assume I would then have to deal with some serious heat dissipation. You can use this circuit 6v to 12v batter. I did find this linear voltage regulator ( ) in the Adafruit shop, but the documentation there states that I would need at least 7 V input in order to have a consistent 5 V output. Hello friends, today in this video Ive shown how to make a simple short-circuit protection circuit using a relay. 1.When we say 12v battery often we refer to the car battery or any 12v lead acid battery in order to power ower project with any 12v battery we have to. For most of the operating time, current draw will be closer to 200-300 mA. In total, I need to be able to supply 1.4 A (peak) at 5 V. (And the LED strip is a similar story) It's now clear to me that I need a voltage regulator, but I know basically nothing about voltage regulators. The documentation that I could find on the pi says it can safely accept a power supply up to 5.5 V, which means my 6 V battery is just slightly too much. The current I measured peaked at 400 mA during boot and then settled to around 200 mA during typical operation.) It's a headless configuration with no networking. (I took some measurements, and my raspberry pi does not draw anywhere near the 2 A that my power supply can provide under actual operating conditions. Its the simplest circuit to achieve best reults, cheap and realible. I have found a data sheet for a Rayovac heavy-duty lantern battery and have done the calculations to verify that it meets my needs in terms of both total capacity and ability to deliver the current that I need. I do have a UPS, which does a good job of powering the system through brief interruptions, but it does not have anywhere near enough capacity to handle the multi-hour outage I am anticipating.īased on easy availability, low-cost, high-capacity, and ability to handle relatively high currents, I have settled on (alkaline) 6 V lantern batteries. I would rather cover my nightstand with batteries than fail to wake up!) The most sensitive piece of equipment is probably a Raspberry Pi 3, though I also am running a strip of LEDs ( ) which apparently are quite sensitive. I'm not willing to go without my alarm clock if I can avoid it, because my circadian rhythms are also very sensitive to disruption. There is a planned power outage in my apartment building due to maintenance. This section discusses some of the important features and specifications of the lithium battery protection board. I've built an alarm clock that does a pretty good job. (I have a sleep disorder, and it is ridiculously hard to wake me up. Context: I have a temporary need to power a project that usually runs from a 5V power supply without access to AC power.
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