Well I'll put my first charge experience here.
I charged the first eight over night, then swapped them out with the second eight and let them sit all day while out and about. Then, just in case there was any residual drain in on day, I topped off the first eight right after pulling the second set off, so they'd have an even charge.
Day 1
So I loaded them in my 2nd Gen Trc-931, and played a tape mix I made on the lower deck at 50% volume for about an hour then shut it down, and brought it to work. Sounded great.
Got to work and played it in Aux/Phono for 9 straight hours at 50% volume. Sounded fantastic all day. Before I took it home, I played the cassette for a couple minutes. It sounded to me every so slightly slower speed. Crystal clear and to most people probably not noticeable, but I've listened to these tracks enough to tell it was a touch slower.
Got home and played the Mariners game on AM radio for about an hour at %25 volume before shutting it down and getting the kids to bed.
Day 2
Brought it back to work and had a bit of a scare, it wouldn't power on. Pulled a battery, it was at like 1.280v, thought that seemed okay, so first plugged into the wall, flipped the AC/DC switch, powered right up. Pulled ALL the batteries, checked every voltage, and wrote them down as seen in the following picture. All pretty close and good seemingly. So I figured my AC/DC switch was dirty, took the back off and deposit it, back together and good as new.
Played 3 hours Aux/Phono at 50%, then switched to the Mariners game on AM radio for 5 hours still at 50%. Before heading home, where I played Aux/phono for about 1 hour at 25%. Sounded great all day. Checked the tape and was really slow at the end. Kinda like Home Alone 2 when Kevin is using the Talkboy to change his voice.
Day 3
Today I brought to work along with my charger as I expected today they'd not hold on. I was right. I pulled all the batteries out again and checked each voltage. They were amazing almost dead on the same voltage aside from 2. I think I got about 1 hour of Aux/Phono at 50% before I dropped off. Unfortunately I was out if the shop for 20 minutes when I came back and it was pretty much dead, so I can't say for sure, but it was between an 50-70 minutes.
So we'll say an hour, and Wild Bill at the shop said, "your radio started sounding like garbage." So it must have been noticeable when they fell flat. I pulled them checked the voltages. Most around 1.1v, but one at 0.070 (yes, 0.070v). My charger didn't recognize it, but I let it sit for 5 minutes and it creeped back to 0.800v and it started charging! Thought I ruined it already. Phew.
Anyways. First charge experience was great! Better than I expected. ~18 hours of Aux and 1 hour of Cassette at 50% volume, 2 hours of 25% volume. Pretty fricken good to me!!!!
Here I wrote out what I did each day and the voltages. Keep in mind the voltages were take the following day before it was played. So day 1, voltage was taken in Day 2, but before starting Day 2 of music. So it's the reading of the settled voltage of Day 1's use. Still with me? Haha. And the Day 3 voltage was immediately after it died before the voltage settled.
Anyways. I'm impressed. Now I'm seeing how long it takes to charge. Only thing is I'm wondering if it's worth getting a second set to combat the down time... but right now I have 4 spares, so can rotate and charge, only having to wait for 8 batteries instead of 8 then 2. Well that's all I've got right now.
Keep in mind my batteries are not labeled, to the voltages are not matched across the days, just random placement.
I know my Sharp GF-777 at 50% can still be heard clearly almost two houses away.
