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Can Fluctuating Solar Charging Voltages Harm My Batteries?

Question:

Hi Jeff, I have 4 flooded lead acid house batteries connected to one solar panel which satisfies all my charging requirements. However, when at anchor the charging fluctuates as the boat swings with wind, current & passing clouds. Is this a concern to battery health, if so, is there a remedy? - Brent

Answer:

Hi Brent, as you mentioned, it is totally normal for a solar array to output varying voltages depending on sunny conditions, solar panel shading, and battery condition throughout the day. Your batteries won’t be damaged by this variable charging voltage. - Jeff

House Battery + Starter Battery + 2 Battery Monitor Shunts?

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House Battery + Starter Battery + 2 Battery Monitor Shunts?

I Am Adding a Second Battery, Should I Use a Battery Combiner or a Battery Isolator?

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I Am Adding a Second Battery, Should I Use a Battery Combiner or a Battery Isolator?

Battery Charging Redundancy with a Battery Isolator

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Battery Charging Redundancy with a Battery Isolator

If I Have Three Battery Banks Do I Need Three Battery Monitors?

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If I Have Three Battery Banks Do I Need Three Battery Monitors?

My Battery Charger Has Three Outputs, Can I Connect Them All to One Battery to Charge Faster?

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My Battery Charger Has Three Outputs, Can I Connect Them All to One Battery to Charge Faster?

Can I Use One Alternator to Charge an Flooded Lead Acid Starter Battery and an AGM House Battery?

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Can I Use One Alternator to Charge an Flooded Lead Acid Starter Battery and an AGM House Battery?

How to Charge a Lithium Battery House Bank and an AGM Starter Battery at the Same Time?

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How to Charge a Lithium Battery House Bank and an AGM Starter Battery at the Same Time?

Why You Can't Use a Starter Battery as a Deep Cycle House Battery?

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Why You Can't Use a Starter Battery as a Deep Cycle House Battery?

Can You Explain Battery Capacity and Battery Voltage?

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Can You Explain Battery Capacity and Battery Voltage?

The Role of a BMS (Battery Management System) in A Lithium Battery Bank On My Boat

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The Role of a BMS (Battery Management System) in A Lithium Battery Bank On My Boat

Should My Battery Isolator Have Diodes or FETS?

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Should My Battery Isolator Have Diodes or FETS?

How Do I Charge The Generator Battery on My Boat?

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How Do I Charge The Generator Battery on My Boat?

What Is the SI Post for on an SI-ACR Battery Combiner?

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What Is the SI Post for on an SI-ACR Battery Combiner?

IT ISN'T BROKEN! Why Your Battery Monitor Is Not Wrong! PYS Tech Talk

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IT ISN'T BROKEN! Why Your Battery Monitor Is Not Wrong! PYS Tech Talk

How Do I Charge a Lithium House Bank and a Lead Acid Starter Battery With My Alternator?

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How Do I Charge a Lithium House Bank and a Lead Acid Starter Battery With My Alternator?

Using A Battery Switch While the Boat is Running - Good or Bad?

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Using A Battery Switch While the Boat is Running - Good or Bad?

How to Monitor Lithium Battery State of Charge Without Bluetooth

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How to Monitor Lithium Battery State of Charge Without Bluetooth

Does a Battery Combiner Draw Current When No Charge Is Present?

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Does a Battery Combiner Draw Current When No Charge Is Present?

What Is the Depth of Discharge for My AGM Battery?

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What Is the Depth of Discharge for My AGM Battery?

I Purchased a 3-Output Battery Isolator but I Only Need 2 Outputs - Can I Leave One Unwired?

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I Purchased a 3-Output Battery Isolator but I Only Need 2 Outputs - Can I Leave One Unwired?