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Excessive current is the cause. A battery delivers an electrical potential difference (the voltage across the two battery terminals when connected). When the two battery terminals are connected by something which conducts electricity (a "conductor"), an electrical current will flow from one lead to the other; a flow of electrons is established across the terminals. When this electron flow is unrestricted, or in other words when it flows through ONLY the conductor and no other parts, the current is then as high as it can be, which for two 6-volt batteries (12 volts total) would be 12 amps (12 volts divided by zero "ohms" of resistance equals 12 amps) of speed, or "current" as it is correctly termed. 12 amps is an extremely large current and would fry most any electrical part in a typical device (dye to literally the friction of electrons crashing through particles) such as a light, and has the potential to stop your heart and/or loose conciousness and/or receive severe burns. The current therefore needs to be slowed using a small device called a resistor, down to a much smaller and more practical fraction. This is why your battery terminals heat up - use a resistor, they can be bought at Radioshack for pennies, and do your simple math of Ohm's Law (voltage divided by resistance in ohms equals current, current times resistance equals voltage, etc.).
What else can I help you with?
How do you create 12vdc without a car battery?
By connecting two 6 volt auto batteries in series. Or by connecting eight 1.5 volt batteries in series.
Can 3 of four batteries be wired up in series and 1 in parallel. Will this setup drain the parallel battery?
No it will impose the voltage of the three series batteries across the terminals of the paralleled battery. Batteries can only be parallel when all of the voltage potentials are near equal.
How does connecting batteries in series affect the overall voltage output?
Connecting batteries in series increases the overall voltage output.
How do you connect 2 12v batteries to get 24v?
Wire the batteries in "series". Place jumper from neg (-) terminal to the pos (+) terminal on the other battery. You will have 24V across the remaining terminals.
How do you place charging leads to two 6 volt deep cycle batteries that are in series?
If the charger is a 12 volt DC machine, connect the leads to the two battery terminals that the load is taken from. Take care to note the polarity of the leads to the polarity of the battery terminals. There will be a short jumper cable between the two six volt batteries. The charger leads go on the opposite terminals of the two batteries that the jumper is connected to.
If you have two 1.5-V batteries and they have the positive terminal of one batery connected with the negative terminal of another how does that voltage compare with the voltage of a single battery?
When you connect the positive terminal of one 1.5V battery to the negative terminal of another, you create a series circuit. In this case, the voltage is additive, so the total voltage across the two batteries is 3V (1.5V + 1.5V = 3V), which is double the voltage of a single battery.
How can I connect batteries to increase voltage?
To increase voltage, you can connect batteries in series. This involves connecting the positive terminal of one battery to the negative terminal of another battery. The total voltage will be the sum of the individual battery voltages. Make sure the batteries are of the same type and capacity for best results.
What is parallel car battery wiring?
parallel battery wiring is hooking 2 batteries together in parallel series give you double the volts Clarification: Parallel battery wiring is where two or more batteries are hooked together in parallel (i.e. both/all positive battery terminals are wiredtogether, and both/all negative battery terminals are wired together. This results in a battery voltage which is the same as that of the individual batteries (typically 12V in most cars). The reason for doing this is to boost battery capacity- two identical batteries wired in parallel give twice the electical storage capacity of one battery. No increase in voltage is obtained with parallel wiring. Series wiring is where two or more batteries are hooked together in series (i.e. positive terminal of the first battery is hooked to the negative terminal of the second battery). The resulting voltage is the sum of the individual battery voltages - if two 12V batteries are hooked together, the resulting voltage will be 24V. No increase of storage capacity is obtained with series wiring.
How do you connect neon lights to two 6v batteries?
you want to wire the batteries in series...connect negative of one battery to positive of the other. You then use the two remaining terminals as youe - and + 12v source
How do you charge two batteries same time?
Use a special charger, such as an RV or boat charger, that has multiple outputs (best). Connect the two batteries in series, and use a 24V charger (ok, if the two batts are exactly the same). Connect the two batteries in parallel and use a standard 12V charger ( worst choice, one battery tends to hog the current, and they receive unequal charges). See the links for a dual-output charger I Googled.
How do you connect diodes in series?
Connect positive to negative, leaving the end positive and negative connections free to power circuits or devices. Connecting batteries in series adds the voltage of the batteries. For instance, connecting three 12v car batteries in series will create a total of 36v, enough for welding.
How can I connect 3 1.5 volt batteries in series to increase the total voltage output?
To increase the total voltage output, connect the 3 batteries in series by connecting the positive terminal of one battery to the negative terminal of the next battery, and so on. This will result in a total output voltage of 4.5 volts.
