Recent content by Riley

So I wonder if it's possible to build a hybrid battery, maybe 20x 12v 10ah batteries in series? Based on Dr.Prius, an app that shows battery voltage, and charge/discharge information, I found the battery in my 2009 Prius normally ranged from 230v to 270v depending on its discharge/charging state...

Does anyone know if there is any reliable 12V to 19.5V cable for the laptop, it would be so much more efficient for power saving, and I can have a mobile power bank for my laptop. It must be reliable so it doesn't kill a $1700 laptop... I found on Amazon there is a 12v to 19v step-up DC/DC...

I've had a couple of bad experiences; repairing a black water pipe was nasty. There were also a couple of times where I was woken up by the police early in the morning, as well as parked in a bad location and had trouble sleeping all night due to the noise. But other than that, I didn't have...

Not all ice is equal though, It can be as low as -100F or as high as 32F. I am wondering if I had my battery charged at noon, the extra power can be as much as 2KWH, is there any freezer that can convert that much power into temperature? Also, I assume the colder the ice, the more power will be...

Hi, I am wondering if the idea works. Since It's very expensive to add more battery, can you simply put an extra freezer to convert electricity into cold ice, and use ice to cool down the RV instead of draining the battery? I am not sure if it's worth it, I think the idea is we will put the...

I don't quite get why this cable says it can only accept 220v. It's going to be hard to tell whether an EV Station providing 110v or 220v J-1772

So I have a setup with Growatt(Growatt SPF3000TL LVM-48p), which works fine, but if I want to get AC charging from an EV port, do I simply get a "J1772 to NEMA 5-15 EV Charger Adapter" from https://www.evseadapters.com/products/j1772-ev-adapter-for-ebike/ and add a 220VAC-120VAC transformer...

Another measurement for all four batteries, about 3 minutes after charging, was: 13.33V, 14.00V, 14.00V, 14.12V It seems like only the first one gets off-limits while changing, which excludes the possibility that it was caused by 48-12 DC-DC? Since both of my first and fourth batteries were...

Based on testing today, I found that the battery was well balanced at rest (even a few minutes after MPPT charging stopped). They are off when it's charging. I measured two batteries out of four because the other two were too deep inside to reach. (After the MPPT charge stopped for 3...

EG4 comes out right after my zooms order.

Purchased.

Is it capable of balancing a huge voltage difference(like .7V -1V), or do you need to balance the batteries roughly before using it?

not so cheap... 297*2 = ~ $600 only $19 difference compared to ZOOMS 12V 200AH :/

I guess I should get a PowMr Battery Equalizer 48V in this case. Since I live in RV and there is no on-grid power, charging them one by one will be hard. I can only do this by solar charging mode from Growatt. Charge them with a 12V charger from 7 AM to 5 PM each day for each battery, and put...

What is the very cheap LifePo4 you got? I thought ZOOMS is the cheapest lifepo4 for sale :)