What should a deep cycle battery read when fully charged?
Voltage on a fully charged battery will read 2.12 to 2.15 volts per cell, or 12.7 volts for a 12 volt battery. At 50% the reading will be 2.03 VPC (Volts Per Cell), and at 0% will be 1.75 VPC or less. Specific gravity will be about 1.265 for a fully charged cell, and 1.13 or less for a totally discharged cell.
How do you charge a negative ground battery?
Connect the negative, or black, cable from the battery charger to the negative battery terminal by squeezing the alligator clip at the end of the cable so that the jaws open. Place the jaws over the terminal and slowly release the clip so that it is firmly attached to the terminal.
Can a negative trickle charger be used on a positive battery?
The negative terminal on the battery should never be used, as it can cause an explosion or fire. Connect the alligator clips. There should be a black clip and a red clip. Take the red or positive cable and attach it to the positive terminal of the battery to be charged.
What happens when a battery is charged but not fully charged?
Fully charged (according to the battery charger) but the voltage is 12.4 or less, the battery is sulfated Sulfation is the natural byproduct when the battery discharges. Naturally, re-charging the battery will reverse the sulfation crystals and turn it back into electrolyte, ready to produce power again.
What’s the difference between positive and negative battery posts?
Compare the diameters of the battery posts. For most batteries, the positive post is thicker than the negative post. If the battery cables are connected to the posts, note the color of the cables. The cable connected to the positive post should be red, while the cable connected to the negative post should be black.
Connect the negative, or black, cable from the battery charger to the negative battery terminal by squeezing the alligator clip at the end of the cable so that the jaws open. Place the jaws over the terminal and slowly release the clip so that it is firmly attached to the terminal.
What to do with an inaccessible negative battery terminal?
It is a shared ground (all exposed metal is a ground. So connect to any none painted metal. Though they normally have a bolt or something to attach to near the battery. Often when vehicles have inaccessible battery terminals there will be specific jump start or charging terminals somewhere more convenient.
Can a negative trickle charger be attached to a dead battery?
Don’t attach negative clip to the neg terminal on the dead battery unless you want the car’s wiring removed from the battery. Attach to clean, unpainted part of frame or engine block bolt. This will keep any possible spark or spark arcing away from the potential gas.
Can You charge an AGM battery with a manual charger?
If you overcharge a flooded battery, you may just add distilled water. Any manual or automatic charger will work as long as they are the right voltage and have low-amp settings. While it is possible to charge both AGM and SLA batteries with a manual charger, it is not recommended.