Heya all, just wanted to post a quick update.

I have been getting my shopping carts ready to place my orders and wanted to offer a price breakdown as I will not be charging for my time on these (but will gladly accept tips on top of parts/shipping costs). I do plan on making content for my Youtube when I am designing (the 3d printed cases) and assembling these units. I will be offering a range of colors for these to be printed but I think I will keep the standard color orange to match the RPB logo/theme.

Anyways, here is my group buy cost breakdown..

RPB-BattEx1 Parts Cost

LCD Display-               $12.99
Power jack socket-       $1.60
Heat-sink for diode-       $4.96
Cable assembly-       $2.94
R-100PRV 6A-               $5.48
R-100PRV 6A anode-            $5.48
3DP case-                 $5.00
Shipping-                       $12.00

GB Special Price           $50.45

So far there are 6 people signed up for this group buy and I will be ordering enough parts to make 10 units in all this batch and future units I will make available through either an Etsy store or a direct purchase using Paypal invoicing. There is STILL a tad bit of time left to get in on this batch if you are not signed up already...I will double check here prior to placing my orders tomorrow morning.

Cheers!

Quote from: notmarkmiranda on November 20, 2021, 12:50:24 PM
I would like to be included on the list for a battery extender please.

Got you on the list!

Heya all, I just wanted to post an update on the battery extenders.

I will be placing my order for the parts on Monday (Nov. 22) so there are just a couple more days to get in on this batch. I will double check this thread prior to placing the order. I will also make a couple videos and post them on my YouTube to share so that others can make their own or maybe I will offer a DIY kit of the battery extenders if there is any interest there.

Anyways, looking forward to building these very soon

Cheers!

Quote from: Bobr on November 07, 2021, 01:13:40 PM
Add me too please. Thanks.

Will do mate!

Quote from: JimInPT on November 06, 2021, 10:45:17 AM

Quote from: peanutbutterpope on November 06, 2021, 10:44:27 AM
Updates coming soon...still plenty time for more people to get in on this batch.

Cheers!

Good to hear; please add me to your list - thanks!

I got you bro!

Quote from: geekxx on November 06, 2021, 08:47:51 AM
Is it still possible to get in on the next batch? If so I'm in.

Not too late at all...that is part of the reason why I am not finalizing this batch order for another week..to give time for more people to get in on this batch. I will update here again prior to ordering parts for this batch and I will post up the list of all group buy participants (for transparency).
Thanks again for your interest~

Updates coming soon...still plenty time for more people to get in on this batch.

Cheers!

Quote from: RayStDenis on October 31, 2021, 11:09:59 PM
I'm in. Ray St.Denis   styan.ray@gmail.com

Quote from: Papa Fixit on November 05, 2021, 06:22:47 PM
I would like to purchase one.

Hey all, apologies for my delayed response here..it's been a funky, rough week or so. I will get you guys taken care of in this upcoming batch of battery extenders. I am planning to order parts in another week or so and will be purchasing and building the units prior to taking any payments and I expect approx. 2 weeks for assembly and testing once parts deliveries arrive. I am planning to have a couple extra units available after the group buy and will gauge further interest.

Thanks for posting up and I will update here again in a couple/few days.
Cheers

~Morgan

Quote from: DickB on October 29, 2021, 06:47:26 AM
I've had a few people contact me about making a diode device. I did build one batch, but don't foresee building another batch anytime soon. Contact peanutbutterpope about a possible build.

Heyo! Anyone wanting a "battery extender" post up here and shoot me a PM. I have been planning to order parts and build my unit plus offer some units to the community. I will offer the kits  a completed unit or a DIY kit which requires soldering (for a discount).
I will post up here before I order all the parts to give others a chance to get in on this batch of kits.
Thanks for your interest.

Quote from: dennis pratt on September 23, 2021, 10:31:31 AM
Dick B..   I would like one.        prattclan@aol.com   contact me when I can order one   thanks

Heya Dennis, I will be making at least one for myself and would be more than happy to hook you up if you have not got in on any batches already. Sending you an email shortly. Cheers!

Quote from: MikeC on September 12, 2021, 11:46:19 AM
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.

Quote from: DickB on August 03, 2021, 11:41:58 AM
If you don't throw the switch with power applied, a 2A or greater switch of lesser DC voltage rating will work.

Gotcha! Thanks for taking the time to school me here. I should be able to figure this out...I was looking at some other possible alternative to accomplish my single jack charger goal. I will post back in another day or so, just need to catch up on some other projects

Heya, any chance you can share the file for this? I am mainly wanting to get the bolt hole pattern as I will be designing a quick release latch for my rear mounted crate and possible passenger seat.
Cheers!

Quote from: DickB on July 31, 2021, 10:00:13 PM
Actually, you can use a single-throw switch to just short the diodes for 100% charge.

That switch would still need to meet the proper spec though as you mentioned prior?

I have not been able to find any affordable 60VDC 2A switches but I had another idea I just need to research that a bit more

Quote from: DickB on July 30, 2021, 06:22:00 AM
As long as you operate the switch with power off, and the switch is rated for 2A or more, fine. If not, you would need a switch rated at 2A AND 60V DC - not common.

Gotcha! Lemme see what I can figure out. Thanks for that info, learning stuff every day! 

Quote from: DickB on July 20, 2021, 02:23:03 PM
This is my latest version. The box has two power connectors for the charger; one for full and one for partial charge. The project box that I used is a but small and required modifying the meter case a bit to fit. The meter measures power in, so you can estimate how much power was consumed by the battery.

So I was thinking that a switch could be added to the schematic in place of the 2nd female jack...that way you would use the switch to change it from 80% charge to 100% charge thus saving on hardware and the need to swap the cable.

I modified your schematic to what I think it would look like with the switch added..I am no electrical engineer but I think I got it right. Lemme know what you think..