I planned to check the internal resistance before I start charging.
I guess I could order one from Amazon next day.
Good luck with that. 4 weeks and still waiting on the one I ordered from Amazon.
I planned to check the internal resistance before I start charging.
I guess I could order one from Amazon next day.
is their a problem with made in china sticker?My 66 Deligreen EVE cells arrived today in 17 boxes
I am happy to say that the boxes are in pretty good shape.
One box was opened by customs. I opened that one and another one so far.
One thing I noticed is a "Made in China" sticker right on top of each cell.
I am happy to report that they peel right off.
Some of the black covers on the top of the cells aren't lined up perfect. But I don't suspect foul play.
I will add pictures to this thread as I proceed. My plan is to assemble four 48V batteries and have 2 spare cells.
The cells are probably all in spec but I want to check them out just in case.
Hopefully I will be able to use my test results to match up the cells. I don't know for sure if it will help me but I plan to keep records of each cell from the start.
April told me they spent a couple days or so checking the cells.
I assume they just check that they are in spec at the time of shipment. I didn't inquire about it much.
I didn't get a video of a cute China girl checking cells with a meter or a sign with my name written on it.
I have one cell code so far. I haven't tried to decode it yet.
02YCB66710000J 8AL0000070
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I have 16 configured as four 12 volt battery's going to common busbar powering a 3,000watt low frequency inverter, runs my AC like a champ. You will love themLol, the biggest problem is that nobody else had them on theirs. And mine were right in the middle on top.
I peeled them off
Before
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Granted the tin or nickle plated will help with corrosion , but the add resistance . Nickle is 22% continuity and tin is 15%.Dielectric grease is not NoAlox or OxGuard.
only a very tiny bit needs to be on the cell contact face, never on the threads (it will skew the torque & stripping threads is HI-RISK! NO Gobs.
With Tinned or nickel-plated busbars it's not needed, they will not corrode. IF you are Marine (SEA) then all should be done to Marine Spec. which entails all the electrical components as Sea Water & Humidity is killer.
Can you please post a source? My busbars are tin plated and while I was parallel top balancing, to make sure I had good connections, I checked to see if there was any voltage between the cell terminals and the busbars. There wasn't any.Granted the tin or nickle plated will help with corrosion , but the add resistance . Nickle is 22% continuity and tin is 15%.
Electrical Conductivity of Materials - Blue Sea SystemsCan you please post a source? My busbars are tin plated and while I was parallel top balancing, to make sure I had good connections, I checked to see if there was any voltage between the cell terminals and the busbars. There wasn't any.
Thanks. All I know is there was no resistance between the busbars and the cell terminals, and the cell terminals are made of aluminum. My cells are now in series and I will take a closer look at it when I have the time. I don't think using tin plated busbars is effecting the capacity testing of the cells. Some people have tested single cells after having them is series because if a weak cell. And the weak cell still comes up up shy of 280ah's. I could understand this being a problem if using tin busbars...but these are tin plated.Electrical Conductivity of Materials - Blue Sea Systems
Electrical Conductivity of Materials - Blue Sea Systems
Engineering high quality marine electrical components for safety, reliability and performancewww.bluesea.com
JimJr
Volt differences will show up under a load
yes, I am working toward the redundant system. I had a power outage 1x for 3 days and used a kerosene heater to keep from freezing. the kerosene heater backfired in the middle of the night when we were all under blankets trying to stay somewhat warm. it blacked everything in the house with soot and essentially all of the clothes were ruined even by going to the dry clearers with the specialty cleanup crew. $10000 dollars damage. had insurance but I prefer to not be without power and learn from my dumb mistakes of 30 years past.
The Buddy heaters are very good quality and easy to use but the ones that mount directly on top the propane cylinder are much cheaper and compact. Better still is a propane kitchen stove since you can still cook, heat water for bathing and heat the house. My two front stovetop burners are 17,000 and 18,000 btu. I'd rather eat a green fly than use a kerosene space heater. Those things stink like hell and are extremely dangerous.I can recommend a big buddy propane heater as a backup (be sure and buy the hose to adapt it to a tank instead of the 1 lb bottles). Works as well as kerosene, doesn't smell, and propane stores pretty much forever. Since I also have a dual fuel champion generator, I keep a couple of the 30 lb bottles filled (20 lb is the normal grill size, you can get 40 lb and larger as well, but there are laws about transporting them to be filled, and 30 lb is much more manageable). Just thought I'd throw that out there, since I've used a kerosene heater as backup as well, but the smell was just too much for me.
Generator I use.
Propane heater I use
Adapter hose for propane heater
I guarantee you I will never use a kerosene heater inside the living quarter ever again. once was enough. the only time I ever used kerosene since that disaster was in a garage while we worked inside to insulate, electrify and sheetrock it. but as others have said the kerosene heaters are quite smelly and dangerous. never use kerosene heaters unattended and best not to use at all. I have since used propane space heaters if needed. I do believe that solar electricity with storage batteries is going to be the only way to go. my intent is to get off all the propane and go with all solar-generated electricity. I have 64 280ah batteries in route right now to add to the battery bank. propane hot water heater. Never use kerosene heaters in your house--- bad bad bad. I continue setting up the solar power shed for the big uninterruptible power supply. All in the building (solar power shed) next to the house for safety reasons. it is routinely getting down to 20 degrees every night now and the solar power shed is maintaining 68 degrees with one 150 watt heat lamp bulb. it will be less when I am finished and I will put the supplemental heat on a thermostatically controlled circuit with a snap disc on at 40 off at 60 degrees for winter use. I have a blue flame propane heater for backup in the house. still pushing for total off-grid with the solar electric though. I consider the propane as a grid source as you have to keep buying it from the corporate government-supported fossil fuel suppliers.The Buddy heaters are very good quality and easy to use but the ones that mount directly on top the propane cylinder are much cheaper and compact. Better still is a propane kitchen stove since you can still cook, heat water for bathing and heat the house. My two front stovetop burners are 17,000 and 18,000 btu. I'd rather eat a green fly than use a kerosene space heater. Those things stink like hell and are extremely dangerous.