Hi everyone,
I would like to avoid re-inventing and also keep cost low.
I am designing a resistive heating circuit and require a battery with about 12 to 24 Watt hours capacity, something like the smaller size 6 volt lantern battery.
The battery will be discharge over 18 hours of use.
The voltage can be anything because I will chose the resistor to match it. 6 to 12 volts is preferred.
It should have an existing indicator of how much charge is left on it, and it should make electrical contact when it is placed into a space of proper size for containing it.
It would be nice if there are existing chargers that run on 120 AC, and 12 VDC.
So the question is, is there an existing rechargeable battery out there? And if so what is the part no. for it, and/or what is it used in.
I am also looking for a low cost temperature activated switch that will close if the temperature falls below 61 Fahrenheit. I would prefer solid state. I can design one using an opp amp, but again would like to avoid re-inventing if there is something all-ready out there.
Thanks in advance.
Sincerely;
JimPghPa
I would like to avoid re-inventing and also keep cost low.
I am designing a resistive heating circuit and require a battery with about 12 to 24 Watt hours capacity, something like the smaller size 6 volt lantern battery.
The battery will be discharge over 18 hours of use.
The voltage can be anything because I will chose the resistor to match it. 6 to 12 volts is preferred.
It should have an existing indicator of how much charge is left on it, and it should make electrical contact when it is placed into a space of proper size for containing it.
It would be nice if there are existing chargers that run on 120 AC, and 12 VDC.
So the question is, is there an existing rechargeable battery out there? And if so what is the part no. for it, and/or what is it used in.
I am also looking for a low cost temperature activated switch that will close if the temperature falls below 61 Fahrenheit. I would prefer solid state. I can design one using an opp amp, but again would like to avoid re-inventing if there is something all-ready out there.
Thanks in advance.
Sincerely;
JimPghPa
Last edited: