They are more along the lines of the electrical equivalent of a 1 gallon. Charging optima yellowtop charging information.
Optima Batteries Resuscitating A Deeply Discharged Agm Battery Stir
Charging optima battery that s dead. You hook it up and go. The following charging methods are recommended to ensure a long battery life. What is the optima chargers digital 1200 12v performance battery charger and maintainer. That may seem overly simplistic but the truth is many batteries that are thought to be dead are just deeply discharged and work fine when properly recharged. Optima 400 battery charger this charger works for optima batteries as well as non agm batteries. Hook up the good battery and deeply discharged agm battery in parallel positive to positive and negative to negative.
Optima offers an alternative that tricks your traditional charger into charging the deeply discharged agm battery. If you buy a charger for agm batteries its easy to charge up a dead agm. Battery charger under 15 amps. According to optima heres what you need. Do not have the charger connected to the battery or turned on at this stage. Charging optima batteries compare optima chargers digital 400 vs.
To charge the battery you can wire a second fully charged automotive battery 12v to the discharged agm in parallel to and to. Also keep in mind an optima will not recharge properly if treated as a regular flooded or gel battery. Digital 1200 are the optima chargers and maintainer easy to use. Turn on the charger. The simple answer is try to charge the battery. Now hook up the good battery to the charger.
Jumper cables and jump packs are not battery chargers. If an optima is deeply discharged below 105 volts most basic chargers will not supply a charge. Always use a voltage regulated charger with voltage limits set as described below. Why are the optima chargers different or better than others.