diy solar

diy solar

Recent content by aybabtme

  1. aybabtme

    NogiBattery? and welded busbars

    I'm shopping for SVOLT 196Ah cells and found NogiBattery which seems to (1) sell them and (2) have nice accessories for them. I also contacted evlithium.com . I've never worked with neither but NogiBattery is also offering a partial module assembly service where they weld busbars into a...
  2. aybabtme

    Recs for 48V with dimension requirements (100x35x20cm)

    I'm looking for off-the-shelf 48V LFP batteries that fit very specific dimensions: No longer than 100cm No wider than 20cm No taller than 35cm My application is quite weight sensitive, so high Wh/kg is important. Finally, CAN communication is highly desirable but not strictly necessary (for...
  3. aybabtme

    Waterproof battery box

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  4. aybabtme

    Mini Diesel Genset/DC charger

    The installation manual explains how much air flow the genset needs when in an enclosure, it's just a matter of engineering so that those numbers are met. Humidity, what about it? There's humidity everywhere and aircooled gensets work just fine. Salt is the problem, and an air filter will...
  5. aybabtme

    Mini Diesel Genset/DC charger

    Small size, light weight, direct DC with CAN communication with Victron. These generators are game changers in my opinion. The air-cooled would require some thinking, but their manual seems to suggest it's not unworkable. On a boat I think the salt-air could be dealt with using a large air...
  6. aybabtme

    Waterproof battery box

    For my dinghy I'm taking off my ePropulsion E80 (4kWh) and replacing it with a DIY pack of 2.9kWh using NMC (16p14s LG MJ1). It's much lighter, and I don't need the 4kWh of range of the heavy E80. I put my DIY pack in a Seahorse 720 waterproof box, and on top of being waterproof and easy to...
  7. aybabtme

    How to charge a battery bank a long way from charging sources

    I have an electric sailboat catamaran, 35ft, with 2x6kW pods from ePropulsion. I don't understand why you need two batteries on a 42ft boat split between bow and stern. Your suggested battery pack is wayyyy too big, especially if you have a diesel onboard as main propulsion. If I were you I...
  8. aybabtme

    Cells for high capacity, high C-rate? 48V, 250A continuous

    Hi folks! I've built a 48V pack made of 16x CATL 280Ah cells, with a REC Q BMS. The cells were purchased with Jenny Wu from DocanTech in July. The purpose of the pack is to power 2x6kW outboards to propel my boat. However in low-power tests (3kW) I'm noticing that the cells are showing an...
  9. aybabtme

    Buying New Top Performance, High Efficiency Panels

    Right I saw that since posting. I'm trying to find the most efficient panels that'll fit a 65 by 50inch surface.
  10. aybabtme

    Buying New Top Performance, High Efficiency Panels

    Hi folks, I'm looking to buy a few (4 or 6) high efficiency rigid mono panels, and get the absolute most power I can for a given area (surface area is limited). Something using SunPower/Maxeon cells, or LGs, and willing to pay extra for the best. It seems like there's no places where I can buy...
  11. aybabtme

    Custom panel builds

    I've got a box full of Maxeon cells and I'm heading this way too for a custom fit on my sailboat's roach roof. However the big question I have is how to encapsulate them. Anyone has any insight?
  12. aybabtme

    Converting 2x9.9 HP outboards to electric

    Good idea, fired them an email. I saw their stuff at a boat show at least once or twice.
  13. aybabtme

    Converting 2x9.9 HP outboards to electric

    I'm looking at two (2) outboards, each between 6 and 10kW. At 48V that's between 125 and 210A. AWG 2 or AWG 3/0 will do, but 4/0 will help with voltage drop. So on that side, it's not impossible. Realistically, the bank should be able to run at max power (20kW) for 30min, and it's very rare...
  14. aybabtme

    Converting 2x9.9 HP outboards to electric

    I'm super curious about hybrid propulsion (electric drive, fossil fuel generator for range extension). I have a Seawind 1000 XL2 powered by 2x Yamaha 9.9 high thrust variants. I'm searching around to see if any outboard would fit there. In addition, I'm planning for the propulsion battery bank...
  15. aybabtme

    32 Volt System on a Motor Yacht

    I just realized Hatteras 53 are powerboats, that changes things. I'm on a sailboat. You probably have a much larger power budget than I do, and more unshaded surfaces to put solar.
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