Recent content by constantspeed

I cannot speak to most of this, but depending on how many lights you have, and total power draw and length of time you would like them to stay on, you probably need more or larger solar panels, and yes, a centralized LiFePO4 also sized for capacity. Possibly 12awg or 10awg wire depending on...

Yes, that is what I mean. I have Ampere Time and Li Time batteries---they are encased. I also have a build for my garage using those same Eve cells, and no, I would not place the heat pad and metal sheet in direct contact with them. I would also suggest incorporating a version of what @JRH is...

Agreed. The capacity testing is really just to make sure the batteries are good, and will all play nice with each other once wired together into a larger battery bank. If any of them were falling well short or having a problem charging, I would return it/replace it. The testing is to prevent me...

All true, but also depends on your build/scenario. The pad and sheet aluminum are pretty snug under my battery bank/box, and strapped down. More so, the batteries are in their own commercial cases (not DIY cells), and the pad is wired to the DC panel with a minimal fuse. So if it shorts to the...

I have one of these under my battery bank, and did as will shows in the video. Test your Facon heat pad before you install it, and do so in real or closely simulated conditions. I did not, and have them installed on my RV tanks, and one under my battery bank as described in Will's video. But...

Your method basically matches my theory of "practical" capacity vs. absolute capacity, and why I am only concerned with a rough capacity test to know the battery is in good shape and not faulty or lower grade cells. The inverter is going to cutout from low voltage before the battery reaches its...

Thank you. That makes sense and would be the ideal method for critical measurement. I tried the Victron shunt (because I already have it), on a 230Ah Li Time, with a 2000w inverter and a space heater, with a total draw of around 145A. When the voltage dropped below the inverter threshold, I let...

When it comes to battery capacity testing, I see Will using or listing several odd little gizmos for doing so. I see them on Ebay and Amazon. Why can't I simply use my Victron 500A Smart Shunt with the app to run capacity testing on a battery? Fully charge and zero current calibrate to 100%...

I have the Li Time 100Ah Mini, and it has been sitting waiting for a project for a number of weeks now after fully charging, and is resting at 13.37v. The other Ampere Time (previous name of company) 100Ah batteries are currently part of a 500Ah battery bank in our RV trailer. I cannot tell you...

Agreed. I think it is a post-charge event. The History tab in the Victron app will show the charge progress, and if it was "Completed" or stopped by other means. And yes, this followed through to completion for full cycle. I have not. That might be a next step to investigate. First will try a...

These batteries seem to do better with their respective BMS, if the charger max voltage is set below 14.6v. I have been experimenting with the Victron Ip22 30A charger, and the batteries seem happiest if the max charge voltage is 14.4v (manual says 14.4v +/- .2v). When left to do it's thing, it...

I bought three new Li Time 230Ah Plus with LTCP and am having exactly the same experience as you describe. All of them arrive with a voltage around 13.11v. I charge with a Victron IP22 30A charger, and when it completes the cycle, the battery reads 12.89v or 12.96v ----this has been the case...

Update. Also checked the battery with a second multimeter, and same voltage. Next, I connected the battery to a 2000W inverter and ran a space heater pulling 142amp from the battery. It functioned. Let it run for about 20 minutes. Disconnected everything, and again checked the battery voltage...

Well, yeah, those are the possible gremlins. The meter is a Klein, and seems to work perfectly on anything else. I have also connected two other LiFePo4 specific chargers, a Victron and an EG4. Have also played with the settings on the two Victron smart chargers to adjust voltage parameters, but...

Just purchased this battery (and have a second one on the way). The battery arrived yesterday, with a resting voltage of 13.11v. I connected a Victron 25A smart charger with the LiFePo4 charge parameters. After fully charging, and allowing time for it to recover, the resting voltage now reads...