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What if an inverter charger doesn't have an EQUALIZATION feature? How will that affect battery life and performance?

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I have such inverter charger where the BULK and FLOAT features are available, but it is missing the EQUALIZATION feature. I'm using lead-acid batteries.

look at my inverter setting panel enter image description here

Can you tell me about this issue? What will be the impact on the performance and backup time of battery life?

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    \$\begingroup\$ What kind of batteries are you using? \$\endgroup\$
    – user57037
    Commented Jan 22, 2022 at 7:42
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    \$\begingroup\$ Why not add a link to the user manual? \$\endgroup\$
    – Transistor
    Commented Jan 22, 2022 at 7:46
  • \$\begingroup\$ Does the manufacturer of the battery recommend equalization? Some battery types are usually not equalized. \$\endgroup\$
    – user57037
    Commented Jan 22, 2022 at 8:00
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    \$\begingroup\$ An "inverter" is usually a device that does the opposite of what a charger does, i.e. convert DC from a battery to a higher AC voltage (thereby discharging it). I assume your question is about a charger or a device that can charge as well as invert. Again, a link to the actual device would help. \$\endgroup\$
    – StarCat
    Commented Jan 22, 2022 at 8:11
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    \$\begingroup\$ The batteries will last longer if you equalize them. If you don't equalize them, they will probably still last at least two years (assuming you don't over-charge them or over-discharge them). There are a lot of variables, though, like if you keep the batteries in a warm place they won't last as long. Etc. \$\endgroup\$
    – user57037
    Commented Jan 22, 2022 at 9:46

1 Answer 1

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The batteries you've linked are two-terminal 12V lead-acid types. These consist of six series-connected cells internally - with no means to balance (or equalize) them. It doesn't matter if you add more series cells; the charging current will be the same through all cells and the overall situation for each cell won't be any different to the single-battery case. However, you probably shouldn't mix old and new batteries as this might cause excessive stress on the lowest-capacity (oldest) battery in the circuit.

TL;DR these batteries will be fine without equalization.

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  • \$\begingroup\$ actually, searched a lot and Led-acid batteries need to equalize, even having 6 cells of each 2v ending up 12v battery. its important to equalize it once in a month to remove impurities from the outer surface of cells inside battry. \$\endgroup\$
    – Talha Rafique
    Commented Apr 19 at 19:20
  • \$\begingroup\$ lead-acid batteries, including flooded lead-acid batteries, often require equalization charging to maintain their performance and longevity. Equalization charging is a controlled overcharge process that is typically performed periodically on lead-acid batteries. This process helps to balance the voltage and specific gravity of the cells within the battery, which can become uneven over time due to factors like temperature variations, uneven usage patterns, or prolonged undercharging. \$\endgroup\$
    – Talha Rafique
    Commented Apr 19 at 19:36

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