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The Victron Blue Smart IP22 is a 4-stage constant voltage charger, available in 15, 20 and 30A versions. Its presets are good for general users, but its real strength is that just about everything can be configured using a bluetooth app, and configurations saved in custom presets. First, some...

Noco does not disclose any useful details of their charging algorithms. This puffery is why I don't own a Noco charger. Yet I have in hand a Genius 10 and I can't deny its pleasing heft. Let us prepare to grapple with the ineffable itself, and see if we may not eff it after all. This is a...

The Battery Tender 5A is a 3-stage constant-voltage charger. The Costco in Reno was selling them for $46.99 over the holidays. I had already borrowed a 12-bit oscilloscope when I was in town and I thought this might be fun. The rest of this post is scope traces and observations. Kindly move...

Stellantis reported US vehicle sales of 293,225 for Q1 2025, down 11.8% from 332,540 for Q1 2024. That includes 12,057 Gladiators, vs 12,989 in Q1 2024 (-6.5%). The release and pdf are here: https://media.stellantisnorthamerica.com/newsrelease.do?id=26695&mid=425...

FCA US reported Q4 2024 sales of 320,743 vs 343,552 for the prior year quarter. Total 2024 sales were 1,303,570 vs 1,527,090 in 2023. For Q4 Gladiator sold 9,453 units vs 13,660 in Q4 2023. For all of 2024, sales were 42,123 vs 55,188 in 2023. The report and pdf attachment are here...

You know nothing if you haven’t measured it. So I did. About 300mAh per day for my 2023 with power nuthin. At that rate it would take 3 and a half weeks to discharge 10%, and well over 4 months to discharge to 50%. The average draw is around 13mA but it varies quite a bit over short and long...

The claim that the batteries are isolated during ESS stops is often repeated. Is it true? I haven't seen any evidence to support it. I found just one post observing that the voltages of the two batteries fall in tandem during ESS events: Consider another possibility: The crank battery voltage...

I’ve seen indications that my Jeep’s charging algorithm is shit but this surprised me. Sometimes it doesn't even try. After an hour on the trail yesterday I aired up from the battery with the engine off. This would have used less than 3Ah. Then I drove home. The charge controller had a chance...

It's that time again. Stellantis sales are down 19.8% from Q3 2023, and 17.0% YTD from 2023. Gladiator sales are down 35.3% from Q3 2023, and 21.3% YTD. Stellantis report text and detailed pdf: https://media.stellantisnorthamerica.com/newsrelease.do?id=26253&mid=425...

10,489 Gladiators sold in Q2, down 25% from the prior year. FCA Reports Second-quarter 2024 US Sales Results Q2 2024 U.S. Sales Chart (pdf)

TLDR. For the purposes of acceleration and braking, the effective weight of a spinning wheel is up to twice the actual weight. The kinetic energy of a spinning wheel on a moving vehicle is up to twice that of the same mass at the same speed without the rotation (e.g., the spare). The ratio is...