Xantrex Technology Link 1000 manual Over-charge Ah Accumulation of Positive Ah

Charging Functions

Over-charge Ah (Accumulation of Positive Ah)

If the battery is 100% charged, and the Link 1000 is synchronized with the battery, over-charge Ah are displayed as a positive Ah number. Some accumulation of over-charge Ah is normal with systems that are continuously connected to a charger. For example, a 100 Ah battery at Float voltage will normally have a little less than 0.1 amps flowing into it. This means you would expect about 2.4 Ah of over-charge to accumulate each day. If your battery system is larger, more current flows and more over-charge Ah accumulate.

If the charging system is a constant voltage type set at 14.2 volts, as much as 1 amp may be flowing all the time after the battery has reached the charged parameters. Prolonged high voltage applied to a fully charged battery will likely cause gassing, and you would expect to see a large Ah over-charge every day. This is a indicates that you are shortening the life of your battery by over charging. Check your Link 1000 before turning off a charging source to see that you have not accumulated too many over-charge Ah. (When discharging begins, the Link 1000 resets to zero and begins to report Ah consumed.)

If you equalize your batteries, some over-charge Ah will accumulate. This is normal and ensures that the Link 1000 stays synchronized with the battery state-of-charge.

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