Hi Guys,
First off, apologies for the typo in the title.
I'm new to the forum and electronic circuitry in general, so please be gentle with the flaming
I would like to power a 12v DC device with a 12V DC rechargeable battery, pretty straight forward.
The battery provides 8 amp hours - but from what I understand, what matters with DC is the voltage, the amperage is how much power the battery CAN provide, so battery can be of any amperage greater that the requirement, and it won't damage the circuit, provided the voltage is correct, right? So, I can connect a 80 amp hour battery to power a 12v 1 amp device?
The device requires maximum 1 amp. From what I've read on the forum, and other sites, 12v batteries fluctuate between about 10 to 14 volts, depending on the charge.
The device is sensitive to fluctuations, and I would like to protect the device from under/over-voltage/current as much as possible. I.E as the battery gets flat, or when I connect a charge to the battery, while the device is drawing power from the battery, etc
I would like to know, do I need a resistor, a fuse, or a new buzzword I learnt, a linear regulator?
I've been browsing the RS-Online site, and all it's doing is making me more confused, 12 volt at 1 amp is 12 watts, but there isn't a 12watt resistor, does that mean I can connect three 4watt in parallel to do the job? What about a fuse?
Thanks in advance for the help guys, much appreciated!
P.S In case you guys were wondering what the "device" is, it's a Router, which I want make portable - either with a dedicated battery, or drawing power from the car battery.
First off, apologies for the typo in the title.
I'm new to the forum and electronic circuitry in general, so please be gentle with the flaming
I would like to power a 12v DC device with a 12V DC rechargeable battery, pretty straight forward.
The battery provides 8 amp hours - but from what I understand, what matters with DC is the voltage, the amperage is how much power the battery CAN provide, so battery can be of any amperage greater that the requirement, and it won't damage the circuit, provided the voltage is correct, right? So, I can connect a 80 amp hour battery to power a 12v 1 amp device?
The device requires maximum 1 amp. From what I've read on the forum, and other sites, 12v batteries fluctuate between about 10 to 14 volts, depending on the charge.
The device is sensitive to fluctuations, and I would like to protect the device from under/over-voltage/current as much as possible. I.E as the battery gets flat, or when I connect a charge to the battery, while the device is drawing power from the battery, etc
I would like to know, do I need a resistor, a fuse, or a new buzzword I learnt, a linear regulator?
I've been browsing the RS-Online site, and all it's doing is making me more confused, 12 volt at 1 amp is 12 watts, but there isn't a 12watt resistor, does that mean I can connect three 4watt in parallel to do the job? What about a fuse?
Thanks in advance for the help guys, much appreciated!
P.S In case you guys were wondering what the "device" is, it's a Router, which I want make portable - either with a dedicated battery, or drawing power from the car battery.