I wanted to thank this forum for all the support. Especially Michael B. Caro for his infinite patience in my first purchase with China during extended shipping delays and of course Will for all his great video tutorials. NO way could I have done this without those. Here are my almost final...
Trying to be as thorough as possible, I've Top Balanced and Capacity Tested my first battery build.
I received the cells on 2/11/21. My cells did not come as consecutive numbered items (see table below). I'm assuming this is a sign that they were hand-selected as being similar to each other...
I know this isn't really a common Inverter size for most people on this forum. Someone might find it useful.
Got the 300 watt Giandel pure sine wave inverter in and wanted to test it. The premise was that if it really got 95% efficiency running low wattage items (< 100w) I could justify having...
About to go on a trip and this new battery / BMS (Overkill Solar) was going to make it pleasurable. I got in this state Discharge: off / Protection: Locking. After trying different things including disconnect/re-connect wiring, I found this thread - I tried just toggling back and forth and...
Dzl, I have found you to be very thoughtful, respectful and fair even when someone (in this case, me) deserves a "talking to". Even though I felt the same affront in his first post, I tried the constructive route in #3 to be more detailed. Mike confirmed that there are others with a similar...
I completely agree! As I'd like to put them in a case with the cells, it is proving difficult to bend (6) 12" #8 wires to my will. ;)
It came down to... my Inverter came with the next biggest wires already pre-crimped and everything else I need will be AWG12. Instead of buying a hydraulic...
If you would spend half as much of your time trying to answer constructively the questions posed versus telling me I'm wrong, your posts might actually be useful. You did not even try to answer any of the three questions in the OP. You should not assume that the OP is ignorant. You should...
I unfortunately dozed off and didn't catch the BMS shut-off. I'd have liked to get those cell values at shutoff. :rolleyes: I'll just have to assume, one of the cells reached the Overkill Solar's pre-defined limit. I'm going to now charge them through the BMS and let it cut them on the high...
I am not an expert in the field, but would consider Nordkyn to be. He says 30 minutes is sufficient and anything more is degrading the batteries. This is also consistent with of most Lithium based thinking in that cycling from 10-90 or even 20-80% SOC and keeping out of the upper knee as much...
I'm renovating a small sailboat and will be installing a full solar system from what I'm learning on this forum. For this post I wanted to show-and-tell what I came up with for a small refrigerator/freezer. I probably should have asked for advice first, but made the jump without a net. I...
All these "car" chest freezers are meant to be very flexible - For the Aspenora, you set the thermostat to whatever you want in the main, big compartment. When set to -4F (-20C) its as good a freezer as my home model. At that temperature, the small section above the compressor runs right above...
Some good ideas. I think I understand the benefit of using battery parameters. I guess my thought was if they go out of balance, since they'll not be in the range of the BMS's balancing act. But... surely, they won't go that far out of balance in four months.
Also, way down on my list of...
Thought someone DIY minded might be interested.
https://www.hackster.io/news/new-off-grid-solar-inverter-design-reaches-99-5-peak-efficiency-75eb22fad017
As many of the posts in this thread can attest, the newest doesn't seem to be better. I see 1014 is still the Play Store version and I still use 1015 which is the one that successfully got me out of this problem. I'm a little gun shy and your post further convinces me not to upgrade. Doing a...
I think you have something to offer and I appreciate you trying. However, I'm just not finding anything useful from your responses and you do not seem to read the important points of the situation that prompted this thread. I will try one more time.
It is NOT about money. It is about having...
Just so happens, I had the same question about inverter microwaves and whether I could find one that would work on a BMS limiting system of about 1500 watts and had access to some rudimentary test equipment and this Panasonic.
Testing
Unfortunately, I do not own an oscilloscope so I am unable...
Of course, I'm not questioning the document or the source. I've searched through both of Dzl's recommendations and read the pertinent parts. I do have a question about the conditions. Everything in those documents seems to center around connection to shore power. The galvanic Isolator is...