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Was checking voltage drop using different 200a fuses with a 175a load. Cheap, generic ANL (with the cheap gold metal plating): .107v. Blue Sea ANL: .075v. Blue Sea MEGA/AMG .062v. The Generic would get very hot to the touch after only a few min. The Blue Sea MEGA/AMG ran noticeably cooler...

I'm used to using standard RV converters. Their charging curves are very linear from 0 to 100%. Just installed a 12v Victron Multiplus II 3000 (charging 304ah 4s EVE cells via a JBD 200a BMS). Set the battery type to lithium, fixed mode, absorption 14.25v, and float 13.5v. Charging is very...

Trying to fully understand the difference between the two different model Victron Multiplus II 3000va inverter/chargers. Pricing appears similar for both. Noticed the 2x120v model has an extra "L2" terminal for the AC in and both AC outs that the 1x120v model does not. I believe this "L2"...

Purchased 4, supposedly Grade A, 304ah EVE cells (with dual terminals & flexible bus bars) from 18650batterystore last week ($599 plus $62 shipping; no tax). After top-balancing, used 10, 4 ohm, 100w wirewound resistors in parallel to perform a load test. The cells produced 32-34a (~.11c) for...

Considering the purchase of either an Xantrex Freedom XC2000 or Victron Multiplus II 2000 inverter/charger. Either one will work just fine for our application. The Xantrex is priced approx. $200 less. Warranty support is going to be a primary deciding factor. Haven't been able to get through...

How high of a C discharge rate should a healthy, well-balanced lifepo4 cell pack be able to support and still produce its rated ah capacity? We have a 4s 200ah pack that produced 198ah with a constant .55c load (110a for 108 min). Is 198ah at .55c good, bad or indifferent? The pack was...

Can a dc to dc charger be safely powered by an alternator *directly*? Describing a scenario where the only connection on the alternator's pos (+) output terminal is the dc to dc charger. There's no other load, device, or battery connected to the alternator output except the dc to dc charger...

Very nice solar dashboard. I believe this link belongs to the same gentleman that develops/programs the JBD/Overkill Xiaoxiang iOS apps.

Does anyone know if the Overkill Solar JBD UART USB module is electrically compatible with the JBD 200a BMS UART port? I've discovered they use different 4-pin connectors. The Overkill JBD UART USB module has 3 wires (black, red & white) that go to a 4-pin connector that I believe is a 4-pin...

Currently using a Daly 200a BMS. Considering a switch to the JBD 200a BMS from Amy at powerwholesale. Couple of questions: Is the Overkill USB Module (and JST connector) and Overkill Windows app compatible with the JBD 200a BMS ("H" heated version)? Are there dedicated connectors for both...

I'm using a Daly Smart 4S 200a BMS with 4 3.2 200ah cells. With a 110a load the cells are producing 12.90v, however, the output of the BMS is only producing 12.15v. That's a huge .75v drop. The 12.15v reading is being taken on the output of the BMS (same reading on both sides of the BMS...

Male 2-pin connector (with a ~3" silicone wire pigtail) that fits into the 2-pin "key" female connector on most Daly smart BMS's (see pic). Also included is a normally open, momentary pushbutton switch (fits ~1/4" mounting hole) with 4-5" long pre-soldered pigtail leads. These two items are not...

Prepping for my first LifePo4 build. Would a Daly 4S 12v 200a Bluetooth common port (for 18650 battery pack) be a good match for a set of 4 3.2v 280ah LifePo4 Prismatic cells? Chose a 200a BMS to allow us the option to power our 2000w inverter under full load if need be. Anyone aware of any...