For the capacitor with product number HHXA350ARA271MJA0G I am trying to find the ripple current rating to make sure I have enough in parallel. I am stuck since the datasheet has it in mArms and I have no clue what that is. How does that relate to Amps so I can find the Irms limit of the capacitor instead of mArms, and then from there find out how many caps I need in parallel to account for that limit? The circuit and waveforms from LTPowerCAD is below. My LTspice waveforms show the input output capacitor currents which are seperated by capacitor type. I did this to get a better idea of ripple although LTpowerCAD gave expected Irms I am sure it is still helpful. I am very curious why my input current through my caps has such a huge spike? Then there appears to be no input ripple after the current spike.

Input: Up to 4 solar panels in parallel (12V 100W panels)

Output: 100Ah or 200Ah battery (12V)

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Input: Up to 4 solar panels in parallel (12V 100W panels)

Output: 100Ah or 200Ah battery (12V)

**Example capacitor datasheet:**View attachment 279736

__LTspice Waveforms:__

Output Current for 10ohm load (I noticed the output ripple is actually slightly less but input current through the caps are the same for a load with small resistance such as 1 ohm or less.)

Also the current is expected to be a little higher since the load will be a battery with only small internal resistance. When I run it at 1 Ohm or 0.02 Ohm or anywhere around there output current is 25A with the same characteristics basically which is desirable since I am limiting the output current by design to 25A.Output Current for 10ohm load (I noticed the output ripple is actually slightly less but input current through the caps are the same for a load with small resistance such as 1 ohm or less.)

Also the current is expected to be a little higher since the load will be a battery with only small internal resistance. When I run it at 1 Ohm or 0.02 Ohm or anywhere around there output current is 25A with the same characteristics basically which is desirable since I am limiting the output current by design to 25A.

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**Capacitor current from LTspice:****Cinc1 input ceramic capacitor current: 10 Ohm load**View attachment 279908

**Cinb1 Bulk input electrolytic capacitor current: 10 Ohm load**View attachment 279909

**Coc1 Output ceramic capacitor current: 10 Ohm Load**View attachment 279910

**Cob1 Output Bulk electrolytic capacitor current: 10 Ohm load**View attachment 279911

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**Buck Mode Load Transient:**View attachment 279808

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