Skip to main content

Reply to "MTH PS2 5 volt"

@Gary P posted:

gunrunnerjohn, thank you very much. Just a couple of questions, do you wire them in series or parallel? Also plus + on the supercap to the plus+ on the battery connector (small clip, and the minus - on the supercap to the minus - on the supercap, or reverse them? Again, thank you for your help.

We are trying to replicate the function of a 9V battery. The capacitors are label rated for 5V MAX.  In order to charge a 9V battery the circuit would go higher than 9V so you need a battery or equivalent that can take 9V or higher.

5V +5V in series = 10V rating

Part 2, how to connect the battery snap.  Because when you buy battery snap connectors that are prewired- they are made to snap onto the standard 9V battery as a SOURCE. Key there, again, they are wired assuming the snap they are plugging into is a 9V battery. However, we opposite to that, want to attach the wires of this snap and act like this snap is a battery. The problem with this type of connector is each side switches polarity.

So, again, because you are buying cables and snaps made to plug into normal 9V batteries, not emulate a battery the wiring is reversed. Red wire from the battery snap to the negatve or white stripe of the capacitor. The black wire goes to the positive terminal of the supercap. Again, when buying the typical bulk pre-wired 9V snap connectors, for our purpose, they are backwards.

DIY 9 Volt Battery Connector for Free : 6 Steps - Instructables



That said, if you buy the specific 9V connector without wires that was shown by gunrunerjohn, then you take an actual 9V battery, note the postive terminal, and then make the postive of the capacitor being soldered to the terminal match a normal 9V battery

How to Replace 9V Batteries in Smoke or CO Alarms.

again, this style without factory wires, the round male is the positive, and the castle female socket is negative- just like a normal 9V battery.

Last edited by Vernon Barry

OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

×
×
×
×
×