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It SEEMS like a smarty buy! 12.8V 100Ah LiFePo4 for $301.24 shipped plus a $30 DALY 60A BMS? With the pricing on Amazon, and Battery Hookup's reputation on finding great battery deals, and that these are NEW cells, it seemed like a worthwhile risk. Battle Born is $950 for a similar battery...

I am as well. I just purchased the Battery Hookup 4 x 3.2v 100Ah cell kit. I wish they published a bit more about it so I could plan on what hardware to get for the nuts and bolts and washers to connect the ring terminals. Does anyone know what size those ring terminals are? And can anyone...

Works great here. I'm hung up on waiting on a late Amazon delivery of 8 awg 5/16" lugs so I can finish my build. I've had no problem pulling a few amps through the 4-pack. I haven't tested 100A, but I'll do what I can when I have a chance to finish things!

I need to test my battery capacity, but I don't know how to get it up to the correct voltage. I guess I can set my AC to DC Charger to 14.6v and wait until the pack gets there, then start doing a discharge. Is there a guide somewhere (full disclosure: I haven't looked very hard yet) that...

Sorry to open up an old thread like salting a wound... :) The aforementioned Sticky Post from Will states: 12V 4S LiFePO4 Battery w/ BMS: Absorption: 14.5V Float: 13.6V Inverter Cut-off: 10.7V-12V (depending on size of load and voltage drop etc) I've got a Rich Solar 30A PWM Surface Mount...

That's my hypothesis. OUPES Support either does not know, does not understand, refuses to say, or some other reason. Why would the Inverter need to know the battery level? Use the current/voltage available until the voltage falls below a certain threshold and shuts off. If the charger is...

A friend of mine purchased two Oupes Solar Generators, one 2400 and one 1200. They emailed them stating: Now this flies in the face of everything I know about electricity. Have they done a terrible job of designing their product, that charging while discharging could cause a battery...

Huh, OK. I guess I'm confused about what device(s) are deciding what is full and how. AFAICT, the BatteryHookup.com website says max charge voltage is 3.65V, which for a 4-cell setup is 14.6V. The Daly BMS over-voltage protection is set to 3.75V, release at 3.65V (with a margin of error)...

From OUPES Sept 7, 2023: Nowhere on their website do they mention anything about "Emergency power station," nor did I ask about a UPS. Are they considering solar input and using the inverter simultaneously as a UPS? This company literally makes zero sense to me. Either they are wrong and it...

Agreed. However in a circuit, Kirchoff's Current Law states that the current flowing into a node/junction must be equal to the current flowing out of it. Which simplified, means if the Charger is connected to the battery, and the Inverter and/or DC Loads are connected to the battery: When the...

I've got my beast working, but for the Inverter (Amazon lost my 8 AWG 5/16" ring terminals... argh). Here's a weird thing. I had plugged my AC Charger into the Rich Solar input overnight, set at 32V. When I turned it on, it dropped to about the battery nominal voltage, but was pushing 11.x amps...

Got it -- so with CV charging, I'll hit a voltage plateau of 3.5V per cell (14.0V system voltage). I'm confused as to why the Absorption (boost) Voltage is set on my Charge Controller as 14.4V, but the charger stops charging at 14.0V. Is this because the Charge Controller is not CV+CC? Will the...

Agreed. But it sure seems like if charging and discharging at the same time can cause damage to the LiFEPO4 battery pack, then the design is pretty terrible when compared to the all-in-ones and other Solar Generators on the market. If the Charger and Inverter were both connected to the battery...

The Controller says "SEL" which is Sealed, which sets the Equalizing Voltage to 14.6V and the Boost Voltage to 14.4V, with a float of 13.8V. Beyond the three fixed settings (Sealed, Gel, Flooded) I don't seem to have much control, unless there's another setting somewhere. One thing that I know...