What Size Solar Panel To Charge 60Ah Battery? + Calculator

What size solar panel to charge a 60ah battery? Enter the battery specs, controller type, and desired charge time in our solar panel size calculator to find out.

Calculate solar panel size for 60ah battery

Battery Capacity (Amp-hours)
Battery Voltage
Battery Type
Battery Depth of Discharge (DoD)
Charge Controller Type
Desired Charge Time (Peak sun hours)

Note: If you're not sure, what are peak sun hours and how to calculate them, click here to read an in-depth article about peak sun hours.

Calculator assumptions

how to determine what solar panel you need for 60ah battery?

To find out what size solar panel you need to charge a 60ah battery, enter the following info into the calculator (located at the top of this page). 

  • Battery Capacity: I have already gone ahead, and put 60ah for you.
  • Battery Volts: Is this a 12, or 24 volt battery?
  • Battery Type: Select the battery type, is this a lead-acid, AGM, or lithium-ion (LiFePO4) battery?
  • Battery Depth of discharge DoD: Battery DoD is the percentage of the battery that has been discharged relative to the total battery capacity. for half discharged battery you’d enter 50, if the battery is fully discharged which you can achieve on a lithium battery, ENTER 100.
  • Charge Controller Type: Are you using a PWM or MPPT charge controller to charge the battery? 
  • Desired Charge time (in peak sun hours): How fast would you like to charge your battery or how many peak sun hours your location receives?

Now click "CALCULATE" button to get the result.


Let's suppose...

  • Battery capacity: 60ah
  • Battery voltage: 12v
  • Battery type: Lithium
  • Battery DoD: 100% (fully discharged battery)
  • Charge controller type: PWM
  • Desired charge time: 5 peak sun hours
What Size Solar Panel To Charge 12v 60ah Battery?
Screenshot from the above calculator: What size solar panel to charge 60ah battery?

You need a 210 watt solar panel to fully charge a 12v 60ah lithium (LiFePO4) battery from 100% depth of discharge in 5 peak sun hours using a PWM charge controller.

Read the below post to find out how fast you can charge your battery.

Related Post: Guide: Maximum Charging Current & Voltage For 12v Battery

What size solar panel to charge a 60ah battery?

Here are charts on what size solar panel you need to charge a 60ah lead acid and lithium battery using an MPPT or PWM charge controller.

12v 60ah lead acid battery

Charge timeCharge controller typeRequired solar panel size
4 peak sun hoursPWM150 watts
5 peak sun hoursPWM120 watts
10 peak sun hoursPWM60 watts
15 peak sun hoursPWM40 watts
20 peak sun hoursPWM30 watts
25 peak sun hoursPWM25 watts
4 peak sun hoursMPPT125 watts
5 peak sun hoursMPPT100 watts
10 peak sun hoursMPPT50 watts
15 peak sun hoursMPPT35 watts
20 peak sun hoursMPPT25 watts
25 peak sun hoursMPPT20 watts


  • You need about 120 watt solar panel to charge a 12V 60Ah lead-acid battery from 50% depth of discharge in 4 peak sun hours.

12v 60ah lithium (liFePO4) battery

Charge TimeCharge Controller TypeRequired Solar Panel
4 peak sun hoursPWM260 watts
5 peak sun hoursPWM210 watts
10 peak sun hoursPWM105 watts
15 peak sun hoursPWM70 watts
20 peak sun hoursPWM50 watts
25 peak sun hoursPWM40 watts
4 peak sun hoursMPPT220 watts
5 peak sun hoursMPPT175 watts
10 peak sun hoursMPPT90 watts
15 peak sun hoursMPPT60 watts
20 peak sun hoursMPPT45 watts
25 peak sun hoursMPPT35 watts


  • You need about 200 watt solar panel to charge a 12V 60Ah lithium battery from 100% depth of discharge in 4 peak sun hours.

60Ah Battery: FAQs

How long does it take to charge a 60Ah lithium battery?

60ah lithium battery will take about 5 hours to get fully charged with 200 watt solar panel.

How long does it take to charge a 60Ah battery?

60ah battery will take anywhere from 5 to 10 hours to get fully recharged.

What does 60Ah mean on a battery?

12v 60ah battery means 730 watt-hours of power. calculate the watts in a battery using this formula ( battery ah * battery volts )

How many solar panels does it take to charge a 60AH battery?

12v 60ah battery will need about 90 watts of solar panels to charge in 10 peak sun hours from 0-100%.

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Chris Tsitouris is a renewable energy professional with 10+ years of experience as Director of Engineering at Solar Spectrum, previously working as Project Manager at SunPower and Energy Analyst at the National Renewable Energy Laboratory. As a thought leader, Chris has authored numerous articles and research papers.

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