Recent content by Ulmo

Ok. Bought one for $277.95, arriving Nov 24-27.

Yes. What's a good way to control the exact temperature applied to the sensor from my dry ice? I don't want to put the dry ice's full (lack of) temperature on the probe, just incremental amounts either way. I don't quite know how to do that. I would need my own sensor to know what the other...

I was trying to delete those posts, but there's no delete button.

I think it's obvious heaters need to be designed into these things along with the BMS and cells. It would do as you say: divert charging current to a pad, not charging the battery until it is to spec temp (let's say over 35ºF), and then ramp it up properly according to the spec sheet and state...

Those two bullet points are compatible with each other. Just saying.

The one I received stopped charging when I put the temperature sensor in dry ice, but it still allowed discharge. I posted here about it...

Can I see that video? I would like to know the genesis of this thread, since I don't understand the discussion without the context. I cannot view the video. I posted another thread about something that might be similar...

I don't have am amp meter. Could it be that it was still charging a little, or not at all? What kind of hall effect sensor works on circuits like this? Does Ideal sell one or something?

New discharge test with capacitors unplugged: 13.2 volts in use room temp. 12.7 volts in use when temp sensor is placed in dry ice. Devices still running fine. Returns back to 13.2 volts when temp sensor removed from dry ice. Devices never shut down.

Update: I turned off the power supply, and only had a fan and a few USB devices running off the battery. This is a discharge test. It showed 13.2 volts. I put the temp sensor in the dry ice. It dropped to 12.7 volts. The devices (fan, USB devices) all continued running. I took the temp...

Test results video at end of post with description. Regarding Will Prowse's review of these nice batteries: Then Will commented on that video with this update: "Correction to this video: Unfortunately, I was correct about questioning the low temp charging protection on the powerblock...

Yes, I'm bored. Yes, I want to experiment. Yes, I might want to start some supply businesses. Yes, I care about being safe. Yes, I'd like to be legally compliant even in over-regulated areas. But first, I want to get some inexpensive land somewhere where there are no or few regulations so...

They don't look PT.

They're shipping again according to them: I got this message from them in Ebay: " New message from: elec-module58 (13,522) Hi sir, I'm sorry to disturb you. Because the product was out of stock, we cancelled your order to protect your interests, but now this items have arrived and...

Uhoh. I didn't know this, but it makes sense: https://www.orionbms.com/general/using-parallel-strings/