6 volt battery question

[twobjshelbys]

Yes, just connect the + to the + of one battery and the - to the - of the other. After hearing horror stories of people jumping across one of the batteries I've considered covering the two inside terminals so that they can't be touched.

[Skuzzy]

Originally Posted by twobjshelbys

Yes, just connect the + to the + of one battery and the - to the - of the other. After hearing horror stories of people jumping across one of the batteries I've considered covering the two inside terminals so that they can't be touched.

No, no, no. That is a parallel connection. For two 6V batteries, you have to connect + (on battery 1) to - (on battery 2) then connect the charger to the - (on battery 1) and the + (on battery 2).

That is, if you are charging them with a 12V charger.

You do not want to charge a single 6V battery with a 12V charger.

Also note, a fully charged automotive battery contains 2.5V per cell. If you measure the voltage on a fully charged battery not connected to the electrical system, it should measure 15V.

[twobjshelbys]

Originally Posted by Skuzzy

No, no, no. That is a parallel connection. For two 6V batteries, you have to connect + (on battery 1) to - (on battery 2) then connect the charger to the - (on battery 1) and the + (on battery 2).

That is, if you are charging them with a 12V charger.

You do not want to charge a single 6V battery with a 12V charger.

Also note, a fully charged automotive battery contains 2.5V per cell. If you measure the voltage on a fully charged battery not connected to the electrical system, it should measure 15V.

That's what I said. Battery pic:



+ (connect + tender or charger here)
(battery 1)
-
*
* (connect - of battery 1 to + of battery 2)
*
+
(battery2)
- (connect - tender or charger here)

(Sorry for the primitive graphics, but the forum software removes extra spaces so old-style VT220 graphics don't work)

[twobjshelbys]

Originally Posted by Skuzzy

No, no, no. That is a parallel connection. For two 6V batteries, you have to connect + (on battery 1) to - (on battery 2) then connect the charger to the - (on battery 1) and the + (on battery 2).

That is, if you are charging them with a 12V charger.

You do not want to charge a single 6V battery with a 12V charger.

Also note, a fully charged automotive battery contains 2.5V per cell. If you measure the voltage on a fully charged battery not connected to the electrical system, it should measure 15V.

Oh, I see what you read. I saw it perfectly but stated it badly. I should have said "just connect the +[of the charger] to the + of the first battery and the -[of the charger] to the - of the second battery.

Furthermore, the +'s are to the primary hot lead and the -'s are to the frame ground lead since "battery 1" or "first battery" are also ambiguous.

English is such a crappy language for technical specifications.