10/28/2022 0 Comments Mighty bruin batteryThe absorption mode maintains the elevated voltage from the bulk phase, but adjusts the current, or amperage, throughout the phase. So let's assume you have a 3 stage charger and it flips into Absorption mode. On a 2 stage charger, it switches to Float. On a 3 stage charger, it switches to Absorbtion. By reaching this voltage level, the charger knows the battery is roughly 70-80% full, and then switches to the next mode. The bulk mode charges the battery at a constant current (amperage ) until the battery voltage reaches a certain level. A two-stage charger is preferred for “loaded” batteries and a three-stage for idle or “unloaded” batteries during recharging.Ī three-stage charger is the most complete charger available today, cycling through bulk, absorption, and float modes. However, the charger cannot differentiate between a current going to a load on the battery, or being absorbed by the battery, so it can overcharge a battery supplying current to a load. The battery is maintained at this voltage while the charging current diminishes to a low value, and then the battery is switched to the float voltage where it can be maintained indefinitely. It charges the battery at a constant current until the battery voltage reaches a slightly elevated level. A load can be put on the battery or batteries without altering its ability to keep the battery at optimal charge.Ī three-stage charger is the most complete charger. A two-stage charger is recommended in most instances since it is the most versatile and can be permanently connected to attenuate the characteristic discharge of unused batteries. The charger can be connected to the battery indefinitely. The current then reduces as necessary to maintain the battery at the float voltage. A two-stage charger provides a constant current until the battery reaches its rated capacity and then switches to a “float” voltage. Without loads during charging, the three-stage charger has the advantage because it provides a more complete recharge. If there are permanent or transient loads on the battery during charging, a two-stage charger has the advantage because its circuits cannot be “fooled” into pushing a higher “absorption" voltage than required for charging.
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