Deal on a battery too good to be true? Look more closely and you'll find that chinese manufacturers are combining 16 sets of THREE 314ah LFP cells in parallel without fuses. What happens when three cells are in parallel and one fails? Depending on the failure mode, the other two cells can dump their power into the defective one making a lot of heat.

Here's a screen shot from a Docan YP-900 46kwh battery. Notice the buss bars connecting 6 cells? Don't do this please. Get a battery that has MB56 cells if you need a battery larger than 16kwh.

■■□□□ Texting via available software over radio 📻

Want to send pictures over your Baofeng walkie talkie?

IOS SimpleSSTV

Android DroidSstv.

Scottie 4 (36second) is what we used to use to exchange pictures with Mir space station in the late 90’s.

This looks interesting. SD card to store maps (open street map). No phone needed for an interface, no sim card needed. This unit does have a stubby internal antenna so you might want a repeater on your house to get you over the hump into the network.

Frustration today. We are putting vertically oriented siding on the house and must install horizontal lats.

We used a witness stick to mark were the hinge pins for the functional shutters we have will be and once we knew the placement of those pins for every window and door, we could decide where the lats should go.

We around the house with the beeper and laser and ended up off by almost an inch after 3 walls.

I verified the laser's level on two distance objects (side of workshop and side of house, and it's within 1/4"... don't know why my marks were off.

So after dark we went around the house just looking at the laser and marking the elevation... and it's spot on. I mean like 1/16" on all four corners.

When travelling around the house, be sure to keep the handle of the laser housing point in the same compas direction (ie handle to the north).