Recent content by Gertie

My batteries have powered my RV for more than a year now. I have been very pleased with how they perform and I have not seen any degradation. I keep them charged with 500 watts of solar running through an MPP PIP-LV-MR Series 2724LV-MR off-grid inverter charger. The only trouble I have...

@PriusFan, It's been super easy. If a guy who crosses his multimeter cables can get it done, anyone can. I added two used 240 watt Trina solar panels to the roof of my 28ft RV to max out the solar and an automatic transfer switch to prevent the 110V from making the end of my shorepower cable...

Two quick (probably dumb) questions: 1. My new MPP Solar inverter/charger 3KVA 24V has a different AC output interface from previous models (shown in all the instruction videos). Instead of three lugs for positive, neg, and neutral, it simply has 2 traditional AC wall plugs on the side. My...

Thanks for all the help. I did dive in too quickly. My permanent setup in the RV will have fuses and a BMS. And, yes I finally figured out that my meter leads were reversed, duh! Trouble started when I ordered everything at the same time ... the MPP came almost immediately, the batteries...

Okay I got off the phone with the guy who runs Watts247 and he walked me through diagnosing it and yes mine was wired backwards internally from the factory. It seems to be working fine as long as I remember that red is negative and black is positive. WARNING to all who purchase a new...

1. I'm holding my multimeter leads to the MPP and you can see that the polarity is reverse. 2. you can see the chunk blown out of the positive lead. 3. This connection port must be new from MPP because I haven't seen it in any of the videos. But obviously red goes to red and black goes to...

I built my 24 V battery from 16 x 3.2 V 90AH Littokola batteries . It tested at 25.9 v. Then I plugged the DC cable into the bottom of my new MPP unit. You can't mistake polarity on these new ones the cable only goes in one way with red plugging into red and black plugging into black. Next I...

Thanks to 3d0g I was patient, cancelled my dispute, and my first box arrived today. Interestingly I ordered a lot of 10 and a second lot of 6 (so that I could build a 180ah 24V battery), but rather than shipping them as 10 and 6, I received a box of 8 today. Hopefully the next 8 come soon. They...

Thank you for the insight. I would rather have the batteries than a refund, but two months without even knowing if the order is on a ship seemed too sketchy. I'll post for the forum when I know more.

I tried to purchase the Liitokala VariCore 90ah cells from Aliexpress back on Feb.2. 2021. They estimated arrival this week, (4/1/21) but tracking shows that they have not left country of origin yet. I am trying to cancel the order, has anyone else experienced a problem like this?