Recent content by DWrvsolar

Here is a link to the ConnectDER: https://connectder.com/products/smart-connectder/

I think you'll be fine with the Orion-TR. Even if the house battery BMS or fuse blows while charging the output is limited by the Orion and the FLA starting batteries can easily adsorb the spike. I believe this setup is safe by design and does not require the Sterling type protection device. My...

They turn up on ebay from time to time, but the trick is to find one near enough to avoid shipping.

I think this all depends if the starting and house banks are always connected, or connected through an isolator or combiner. I was suggesting off the shelf solutions and ultimately went with the DC to DC chargers for my bus.

Snow plow trucks, or any application with always connected lead batteries do not need this protection. If you instantly disconnect the load from a charging alternator it will fail. A house battery with a BMS could disconnect without warning. If you could have the BMS disconnect the field to the...

If you're adding a LifePO4 bank I know of no "cheap" way to get a good result. I've got a Delco 50DN gear driven, oil cooled alternator. After a lot of reading and talking to people who seemed to know, I went with two Victron Orion-TR smart chargers. If you want to do direct alternator charging...

Good choice on the 800. I got a crazy good deal on the CL390 from a an eBay seller. Sometimes when you're the only bid it can go well. Just needed it for the DC clamp. My Fluke clamp is is AC only.

Actually the Klein CL380 and CL390 both have "CAT III 600V, Class 2, Double insulation safety rating" according to Klein's website. CL380: https://www.kleintools.com/catalog/clamp-meters/digital-electrical-tester-acdc-clamp-meter-auto-ranging-400-amp CL390...

If this is just a quick SOC meter, I would not bother with the numeric labels, just have lighted bars. More bars = better. This is fine for battery and signal strength on a cell phone.

35-45 or maybe > 40%

I've got some time so my hope is to charge an individual cell, then measure it's internal resistance with enough accuracy to get a baseline, then let it sit for long enough (days or weeks) to see a difference in self discharge between cells and test again. Maybe this requires more resolution...

I've got a Victron BMV712 so I could use it's 500 amp shunt. I'm not worried as much about testing for factory spec. as I am looking for something accurate enough to compare and match the cells. Do you think the YR1035+ or one of the knocoffs would be repeatable or can you suggest a meter that...

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Not planing to balance anything in series. I want to charge and test internal resistance of each cell, then sort cells by test results. I will parallel and top balance the closest cells into two 8 cell packs.

I'm about to order a Yaorea YR1035+ internal resistance meter. Anyone have experience with this meter or recommend something similar? I want to test and match my soon to arrive EVE cells into the the best configuration before top balance.