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When we build a pack with aluminum cased cells we use Garolite G10 between each cell, then use aluminum or G10 end boards to prevent swelling. These cases are live and the PVC wrap is joke and about as robust as 1 ply toilet paper. The only time we saw a failure of this magnitude, in a DIY...

As the owner of a marine electrical business I go as far back as you can go with Victron and began with them in the BMV -501 in the days (I believe this was their first product) well before they pulled the plug on TBS (Their original battery monIgor manufacturer (same one Xantrex used for the...

So, yesterday my brother and I made a trip to the dump to get rid of some scrap metal.. in front of the metal dumpster was this! it will hold/house out LFP batts for the homestead.. What a score!

My business manufactures alternators so not at all shooting from the hip on this.. Only a very few alternators are pushing the high efficient numbers you state but there are many other factors to consider. Some of the highest efficiency units have a very difficult time dissipating heat due to...

Unless you are submersing these in an electrolyte, galvanic corrosion is really not an issue if they are assembled correctly. Datapoint of n=1 (we also have many more banks out there with zero issues) On my own vessel I've been running Winston cells, with SS bolts, since 2010. The cells were...

It's most likely because the OP adjusted the voltage when connected to the load. A variable power supply voltage needs to be set at 0.00A load with the cells or bank disconnected.. When connected to the load, if you adjust the voltage, it will not be accurate when the battery drops to low...

Ah now we're getting somewhere. Your problem is because Progressive Dynamics has NOT A CLUE how to charge LiFePO4 batteries. They simply slapped a "Li" profile (Li batteries are not rechargeable so really should be Li-Ion or LiFePO4 this shows how little they actually know) on a constant voltage...

My 400Ah Winston cells turned 14 on May 9th.. Zero complaints

INFO: Pack 4SWinston 400Ah cells In excess of 2200 cyclesI- it takes a long time to get to 2200 cycles a marine application! Most cycles to at least80%. DoD with well over 100 cycles to 3.0VPC /0% BMS= Started with Genasun thenCleanpower auto BMS (Dimitri sold his business to Lithionics and is...

Been charging a 400Ah LFP bank since 2010, primarily with an alternator (marine application), at roughly .4C. When capacity tested the bank & cells individually all still exceed the 400Ah rating. This is after more than 2000 cycles, most of which have been to 80% DoD +/-... My buddy Stan has...

My company actually built this alternator. Ripple measurements we do are at a 10A load. We wont ship an alt that has more than a 0.4V ripple. The load you test at number of claws,# of rectifier diodes their ratings etc.etc.will all change the measured ripple. Into an LFP bank ripple is almost...

A car is worth nothing with no manufacturer. Ask Saab owners how their values held up. Hell my brother pre ordered a Ford Lightning it is the biggest POS on the planet and the Ford dealers won’t even take it on trade towards a diesel F series… It’s worthless…

We have been using the CBA's since they came out. Early on they were a bit quirky but with each generation they have gotten better. One feature we've begged for, for years, finally came out in the CBA-V and that is voltage sensing. All of our early units required calculating the voltage drop...

and guys like this are why we have codes….

We've done a lot with A grade CALB cells going all the way back to 2010, and they consistently test at 107% - 112% of their rated capacity depending upon the batch. We can extract this charging to 3.45V and allowing current to taper. Pushing to 3.65V gains a gnats hair in capacity and is not...

Read about this: https://sterling-power.com/products/alternator-linearisation-device-17-5v-70f-ald-17500

My brother and I own a large off grid property and over the years we have had a slew of generators. Many of them suck donkey dong. for example a neighbor could not get his Ryobi 2300W to start so he added it to our collection. In March I cleaned the carb from ethanol poisoning and it ran great...

Once the tester hits the disconnect voltage you do not start it again. The test is over when the battery hits the stop voltage. Trying to massage/coax the capacity out of the cell is not going to give you what you paid for. You also have an inexpensive and likely not very accurate discharge...

Our back up Gen is an 18KW diesel. we will never go back to gas or propane.. We have it connected to a 275 gal oil tank that we only fill every few years.Prior to diesel the only gens we found totally reliable were Honda’s.

Alternator to B2B ratio, for marine applications, is about 50-60% of the alternators rated power. The Sterling Power BB1260 (12V 60A) may be a bit too large (would depend on the quality of OE the alternator and on-board loads). The other options would be the Sterling Power BB1230 (12V 30A) or a...

The trick here is those graphs are not derived from testing but rather a mathematical assumption. As one of the first marine electrical businesses in the country offering capacity testing of AGM & Gel batteries I can assure you going to 80% DoD murders AGM batteries including Odyssey &...

MC4 crimp tools are inexpensive

Voltagee does not speed the charging here. The 5A limit of the charge source is what controls the speed. The course and fine voltage adjustments will absolutely work, but they need to be set into 0A load before the cells are connected.. Fine or course voltage cannot be set when connected to...

We just had a Rich Solar 2kW “industrial pure sine” inverter fail in 13 months. Dealing with Rich Solar has been better than Renogy by a mile but still absolutely infuriating. The inverter to bank is all 4/0 Ancor marine wire and total circuit length is 4.5 feet. The bank is Kilovault LFP. When...

Funny I tried to contact you guys for an entire week about a failed DC to DC charger.. You guys could start by answering the phones and providing even a small level of customer service..I finally gave up and our customer returned it to Amazon.. He replaced it with a Victron that works perfectly..

The ABYC marine standards suggest the proper fuse for LiFePO4 is a Class T fuse. This is due to the 20,000A AIC rating of the Class T fuse. This 20,000A AIC rating is at 125VDC which means AIC is actually significantly higher at 13V. The Class T is also fully metal encased.

I have noted this with some of the blue aluminum prismatic cells too. Course I don't push them into the upper knee so don't see evens a 1 degree change. Keep in mind that these blue prismatic are mostly 1C rated and my Winston cells are 3C.That is likely part of the difference

I like that and will give it a try... Bottom line, please don't buy LFP on price and don't buy bottom of the barrel junk...

To properly capacity test a lead acid battery it is discharged at the 20 hour rate with the current held as steady as possible. For a 100AH lead acid battery this is 5A. The battery must also be at or close to 77F and discharged to 10.5V where you stop the discharge and record the discharge time...