Tried out the happy foil for the first time on 14s. That thing rips! I hit at least 24mph and was doing a lot of cruising at 20-22 mph. Definity more twitchy, but a fun different ride. Excited to see my speeds from my garmin watch, but managed to lose it in the last couple minutes of riding Looking down at my watch and remote, I was drawing about 40A going 19mph at one point, which seems pretty darn efficient for that speed.
Almost managed to hit the thermal power cut when I was plowing water trying to get planing. With my short board you had to have your weight all the way to the nose of the board to get it planing before you could pop on foil. I tried powering through a “stall” and saw my fet temp go way up to 75C. 30 seconds sitting in the water though it cooled right down to <60C. When I was up and riding the FET temp didn’t seem to go above 60C.
Just ordered an infinity logger so hopefully I’ll have better data in the future!
Yes, but I’ve only unbalance charged so far since I doesn’t come with cables to balance charge without making them. I’m getting PCB sent out soon to make an easy balance board.
I have a BMS I am designing so I was using a prototype to balance the battery every few charges (since I got to pull the battery out the box and replace the tape). I had do a few cut and jumps to make it work so I didn’t want to put that in my battery case yet until the next version. I charged at the full 1100W parallel charge (for 120V). I was going to make a 240V cable so I can 1800W parallel charge (~30-35A at 14s).
I did update the FW on it. There was a later version then what it shipped with, needed to use their windows app for that.
I got in some connectors that I crimped up to balance my 12s split into 2 6s packs. Leaving tomrrow for a trip. Balancing seems to work well. I had the current drop to like 15A after running awhile though, not sure if it is trying to do something smart based on measure IR or something. I’m going to try and contact IDST
I used to live in breezy point and crosslake, so I used to kiteboard at breezy point, the south end of the lake at the public beach, or the southeast corner at a friends house (before they moved). I’m really familiar with the lake! FYI don’t foil in the breezy point bay - completely full of weeds!
I now live in Colorado but I work for a company in the area, so I’ll usually get out there several times a year. I’ll be there in early January, but I don’t think there will be much efoiling then
I’m sure I’ll be out this spring sometime and it would be fun to meet up!
One goal for the summer - I’d like to hit up crosslake and efoil to moonlight bay and the wharf for a dockside beer
Haven’t seen anymore updates about this X16 Charger, are you still using it and can you recommend it?
Do you also charge your Li-Ion batteries to 4.2 volts with this charger even though they are normally only charged to 4.1 volts?
All my li-ions are rated for 4.2V a cell so I charge them up to that. You can set it to less or more a cell if I remember right.
Been balance changing my 12S12P 18650 pack with it. My 14s10p 21700 pack with BMS ( so no balance charging). As well as other onewheel/scooter packs. Been a good charge everything charger that is pretty compact.
I also have it hooked up to 240Vac now for better efficiently and higher current. I have run it off my generator at 120V as well and it seems to work well.
Been riding the Phantasm PTM 926 I got for winging. That foil is way more efficient on the water then anything else I’ve used. After recharging put about 2927Wh back in the battery, so I did about 160Wh/mi (100 Wh/km) overall efficiency. I wish I could get those numbers out of the @WavRX though!
Cut a slot into the board and moved the antenna up to the nose then re-epoxied it. That fixed my reception issues completely (it was easy to lose reception when just starting the board moving.
Last I checked the distance measurement on the logger was based off the motor spinning. For efoil that doesn’t work very well. Ideally, what I’d like is calculated Wh/mi (or km) vs logged GPS.
So I can look back and check see that when I was traveling 12mph I was getting about 60Wh/mi and when I was going 20mph I was getting 120Wh/mi.
Or I can go in an change foils/props (on the same battery) and see what kind of efficiency I get.
Oh I see what you mean. I noted that and will try to include speed logging off GPS on the next update. I think that’s the only thing left to be able to fully get the numbers you are looking for. On the last updates I added Wh/mi and Watts logging.
Also could the Date on this page show the date of the log instead of the uploaded date? I’ll usually have a bunch of logs before I hotspot my phone and upload them.
Thanks for the report, this is definitely a bug. Can you please send me the log file in question?
Regarding the dashboard, that’s a good point, I will add a new column for logs date.
hey mate, I saw that you have the hinges “barrel” prominent on your deck panel… had you ever had challenges on them being dangerous ? what hinges have you used?
Looking down at my watch and remote, I was drawing about 40A going 19mph at one point, which seems pretty darn efficient for that speed.
