Double your battery life

[natchezz]

Parts cost to me is $25.18 plus shipping.  I'd build 5 and sell for $40 each plus shipping ($8 for Priority mail in the US).

Count me in for 1. Message me how you want paid and when to pay. Thank you!

[sleepnmojo]

I'll jump in for one as well if you are still looking for people.

[DickB]

I will be making up a batch. It will be a couple of weeks for me to order parts and build. When I work out how to take orders and payment, I will post here.

[MikeC]

I will be making up a batch. It will be a couple of weeks for me to order parts and build. When I work out how to take orders and payment, I will post here.

Just a thought. Chase bank, so I assume others too, use a service called Zelle/sp. If you set it up in your bank's app, people can send you money by sending it to your cellphone number, which you include when you setup your account. Maybe you can PM with interested buyers to provide your cellphone number rather than post it here in the public forum.

By the way, I'll take one.

[DickB]

Thanks for the tip. I will likely use PayPal, either via email invoice or Buy Now button on my website. It costs me a bit, but makes order taking and shipping very easy for me.

[Haolehui]

I'm a newb but count me in for one too!  Thanks!


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[DickB]

If you want a diode device, send a message with your email address. I will send you a PayPal invoice. You can pay with a PayPal account or credit card.

[MikeC]

If you want a diode device, send a message with your email address. I will send you a PayPal invoice. You can pay with a PayPal account or credit card.

Hi Dick, PM has been sent.
Mike

[Haolehui]

Ditto


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[natchezz]

I'm in for one too.

[MikeC]

Any more takers? He can't start until he gets a few more takers.

Thanks
Mike

[peanutbutterpope]

Any more takers? He can't start until he gets a few more takers.

I just messaged DickB about acquiring at least the DigiKey parts from him and possibly doing a deal for the enclosures where I would design and print all the boxes for this project, offering custom color options and maybe adding the product name to the enclosure.

A 3d printed box would allow for faster assembly since all the holes/tabs etc. would be baked into the design.

[Haolehui]

Sounds great!  Thanks for reaching out to Dick.  Hope this can be pulled off!


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[Joel52334]

Probably just meter accuracy. My meter is specified as +_1.2% accuracy, so that's +- 0.5V.  Probably just a variation in meters.  I have two DVMs that do read within 0.1V on the Rad battery, but I have one that I got for free at Harbor Freight and it's different by almost 1 V.

Next time I order parts I'm going to get a Maxxim MAX6350 voltage reference IC and check it out against my DVMs.

Yes, Dick, I was thinking the same 4 diode setup would fix this issue.  I have used Ohm's Law, since 7th grade, a while ago.

I'm an IT guy, not a circuit builder, but have done some simulations for RaspPi's.

For we geeks, the wiki on Ohm's Law is just the ticket!  Enjoy.  Great exchange of ideas!
https://en.wikipedia.org/wiki/Ohm%27s_law

[dennis pratt]

Dick B..   I would like one.        prattclan@aol.com   contact me when I can order one   thanks