14.4
- Thread starter gar2191
- Start date
wingnut_1
Well-known member
Could you post some pictures? We love pictures 
spongerich
Well-known member
Damn I'm old. I saw 14.4 and was expecting a thread about modems.
jobo1004
Well-known member
Glad I'm not the only one.
cdeer001
Well-known member
DWise
Well-known member
I started at 300 baud.
honcho
Well-known member
45.5 baud (60 wpm) Teletype Machines running over HF radios
But, back to 14.4, could be just a coincidence or similar to DeWalt's 20V line which is sold as 18v in much of the non-US world
spongerich
Well-known member
Luxury!
In high school, we had 6 teletypes sharing a 300 baud link to an HP 3000 mini at another school. I still have the paper tapes with my first programs on them somewhere.
R. Johnson
Well-known member
18V is the absolute max, unloaded battery voltage for marketing purposes. 14.4 is the nominal voltage. That is based on most companies using 3.7V as the nominal voltage for a single cell lithium battery.
Here's my somewhat educated guess. LiPo cells are normally stored at 3.6 or 3.7 volts. So, a LiPo battery pack with 4 cells in series at 3.6 volts each gives you 14.4 volts.
LiPo cells are normally charged to about 4.2 volts. So 4 cells in series at 4.2 volts will give you 16.8 volts. It's possible that Makita is charging to a slightly higher voltage per cell but I doubt it since they want the battery to last.
Assuming your Makita is lithium my guess is that they are generously rounding up the full charge voltage.
If your kit has an older NiCad battery, 14.4 volts is 12 NiCad cells at 1.2 volts each in series. If you charge a 12 cell NiCad battery to 1.5 volts per cell, that gives you 18 volts for the entire pack.
Chris
LiPo cells are normally charged to about 4.2 volts. So 4 cells in series at 4.2 volts will give you 16.8 volts. It's possible that Makita is charging to a slightly higher voltage per cell but I doubt it since they want the battery to last.
Assuming your Makita is lithium my guess is that they are generously rounding up the full charge voltage.
If your kit has an older NiCad battery, 14.4 volts is 12 NiCad cells at 1.2 volts each in series. If you charge a 12 cell NiCad battery to 1.5 volts per cell, that gives you 18 volts for the entire pack.
Chris
Oh, my first modem was 300 baud. A friend and I use to run a small BBS on a 286 based PC back when the 386 was state of the art. That was before most people had even heard of the internet and "desktop" computers had horizontal cases that really did sit on top of your desk.
We only had a single phone line hooked up but I remember being thrilled when we would hear someone connecting to play Red Dragon or one of the other cheesy ASCII games for DOS.
Yes, I'm a nerd.
Chris
We only had a single phone line hooked up but I remember being thrilled when we would hear someone connecting to play Red Dragon or one of the other cheesy ASCII games for DOS.
Yes, I'm a nerd.
Chris
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Major Ramifications
Well-known member
Would you guys please shut up about your bauds? This is a thread about tools. Some of us ignoramuses don't know what a baud is. And we don't know how to spell ignoramus, but we may have gotten lucky.
PBCampbell
Well-known member
Lol, you're response seems a bit rude. I'd imagine people where just having some fun in light of the OP not providing much useful info.
I can only guess that he purchased 14.4 volt tools when he intended to buy 18 volt.
I can only guess that he purchased 14.4 volt tools when he intended to buy 18 volt.