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Thanks for the suggestion. I will read up on it.

Thanks for the input. I feel comfortable that my alternator will handle the amperage demand. I will read the product manual for the Victron unit. Thanks all.

Reworking my small RV system. Currently 400 watts of panels, a 20 amp MPPT charger controller and 200 amps of FLA batteries. The FLA are getting long in the tooth so I am upgrading to a single 100 amp LiFe04. My DC demands are modest, a diesel heater and lights. Renology are selling their 20 amp...

I keep getting feedback concerning blocking diodes on another forum. I can not locate panels that match my ordinal pair so I have to install a new panel panel string that is close. One pair is has a VOC of 21.4 volts and producing 5.5 amps. The second string has a VOC of 5.38 amps and producing...

Thanks for the feedback.

I have two series strings with two100 watt panels in each string. These two strings placed are in parallel with each other. I had a comment that I need to insert blacking diodes in this array. In all my reading I have not come across blocking diodes. First I am hearing of this. Did I mess...

Thanks for the feedback on this, it helps to understand what is going on. I really appreciate the real-world knowledge I am given on the site. I managed to find a pair of matching panels direct from the manufacturer. One of the series strings has been on the roof of the RV for a years now. All...

I reread it. Again thanks for feedback.

I appreciate the help. This RV lives in the PNW, 47 degrees north, plus 4 months of thin overcast and a shit load of of trees. The panels will never see maximum output. Just in case I go to Joshua Tree should I put a some sort of over voltage protection between the panels and the MPPT?

Sorry there is something I must be getting wrong. I will go back and do some reading based on your feedback and try to figure this out.

Go back and re read my full posts. Do the math. This is a 2s2p array.

Thanks

Thanks

Building a 2s2p array but can not find the exact panel to match the ones that I already have. Can thees two panels be used together. Any feedback would be appreciated.

I stole this image and added my values using the values of the panels and the charge controller off their respective information sheets. So I have two, 2 series tied panel strings. Series tied panels the voltage add and the amperage stays the same. So each two panel string produces 42.8 volts /...

Small RV array of two 100 watt panels. I have read that I can add two more 100 watt panels in a 2s2s type array and stay within the limits of my 20 amp charge controller. Struggling to understand it an hope someone could direct me to an image to help me understand it. Any kicks the correct...

I already have a Cole-Hersee Seloioid connecting the alternator with the current pair of lead/acids. Your point well made concerning pushing my somewhat antique rigs alternator towards a premature death. Before installing first a new LiFePO4 I will disconnect the solenoid and charge the house...

Thanks folks. Will price 100 amps of lithium & a DC to DC charger.

The lead acid information sheet says 205 amps. But with lead acid how much does that really mean.

On my 88 Toyota RV I have a modest solar system. 200 watts of panels, 20 amp charger controller, 2 X 6 volt lead acids in series with a AiLi Battery Monitor. DC demand is just lights and a diesel parking heater. I am researching an upgrade to a Lithium battery and a DC to DC charger. Does a...