I'm looking into buying Gotion 314Ah LiFePO4 batteries to set up a system for my RV. The shipment to Canada means I won't face US tariffs, and I found a good deal at approximately $2,039 for 32 cells. I'm trying to put them into a 16S2P configuration for around 30kWh of capacity, with plans to expand in the future if necessary. This is my first DIY solar project, and while I've done plenty of research, I feel overwhelmed and could really use some practical advice. Here are my main questions: what performance can I realistically expect from these "A-minus cells"? Should I buy extra cells or a proper battery charger for initial top balancing? And what should I specifically ask about concerning the cells and shipping details, especially since the quote didn't include testing reports? I'm excited to learn and get my system set up, but I want to avoid prolonged disputes with sellers. Thanks in advance for any tips!
3 Answers
I've been using EVE LF304 cells in my RV for a couple of years now, and they've held up well. I prefer the double bolt terminal design because it seems more reliable with the RV vibrations. Although it sounds like you're in Canada and can't source EVE's directly, just keep in mind that double bolt options could offer better durability. For balancing, I didn't worry about parallel balancing initially; my BMS handled it well after the first charge. Just my experience, but you might enjoy working with these and should ask your supplier about their performance metrics.
Wow, I was looking at EVE cells before, but yeah, prices seem steep now. Glad you got them for a good deal!
Just a heads up, they may take a while—think 3 to 4 months for shipping—since they usually come over by container, not air. If you’re already set on Gotion, maybe inquire about shipping times upfront. And I get that you're in Canada, so US options won't help you at all. Look into forums like diysolarforum.com; there are lots of people who can share their experiences with custom battery builds, and it might give you more assurance about your purchase.
That price does raise some flags for me—it seems a bit low for the capacity you're getting. I was in a similar boat and ended up paying around $1,400 for my EVE MB31 cells, which felt more secure. Just be cautious with the shipping from China; expect delays and be prepared for any fees. You might think about sourcing from local suppliers if you can find something comparable, even if it’s a bit pricier.
Good to hear you've had success! I'm looking at flexible busbars to aid with vibration. Do you think these A-minus cells will have major variations in performance?