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I tested the voltage before this problem started also, about 4 days ago and it was the same.
The Dr. Prius app does a load test of sorts that gives you the expected remaining life in the battery. No need to access the battery directly....
How are you testing the 12V battery? You need to apply a load when measuring. Load testers are meant for batteries that have to crank a...
So I bought a new Prius last year, and this year I am exempt from emissions testing, but I have to wonder about it. I've seen few discussions here...
Yes it could explain a few things but if those are the cases then you should fail a load test pretty easily and that's easy test for any place...
Going by the numbers. A "fully charged" AGM (Battery found in Prius) should measure 12.8 volts OR higher when measured at the post's with NO...
To be fair to BatteriesPlus, the store did have, and use, a battery tester that did measure CCA. I don’t remember (nor did I ever know – I paid no...
What was the result when you got the battery tested? It tested good on a load test? If the battery was tested good under load, then I would...
If the scanner is Prius aware drive the car and look at MinBlock Voltage, MaxBlock voltage and delta SOC in real time. If Delta SOC is 20% or...
10 years is stretching it a bunch. The problem is an old battery on a Prius is not obvious with signs like slow cranking. As a result you could...
You need to fully charge the 12v battery and test it (with a car battery charger for about 10 hours). If it fails a load test, you'll need to buy...
No need to test. It's very easy to calculate based on a given load. There are a few posts explaining this calculation. Tom
Principle is the same, but the load tester doesn't need to be very sophisticated or powerful, see here: Gen II Prius Individual Battery Module...
I assume I have to charge overnight? The car only has access to electricity for a short period of time (30 min - ~50 min) via an electric "pole"....
This will help you with load testing modules: Prolong® Battery Module Load Tester User Guide - Hybrid Automotive You also might consider our...
EPA sets the guideline but only tests ~15% of the vehicles. The automakers generally carry out the test. I simply think that Ford front loaded...
Possible to have more context instead of musing? How exactly did you pinpoint which cells to replace with Gen 3 batteries? Have you done a load...
No it isn't. It might give a false "good" indication, but it it FAILS you can be pretty sure that it is indeed BAD.
A module with one (or more) failed cells can easily be identified by it being 1.2V less than the other modules using just OCV (open circuit...
Hello Prius brothers and sisters, I performed a little research on how to load test the modules from the HV battery pack. Unfortunately, I...
