DenCo JAG35 Headway Beast
This started off looking for LiFePO4 cells on BatteryHookup.com. There was kit for building a 24Ah Headway 38120 battery pack, and so we started searching YouTube to find more information on such a Headway build. Later it led to Jehu Garcia’s PCB Board Bus Kit and PCB BMS Board Kit using the same cells. Since …
DenCo Batt Mk X
This build was half done for many months. I first put it together and ended up shorting a cell for a few seconds, burning my thumb and forefinger trying to put out the small flame. The new BMS, a “Turmera 32650 20A BMS” has the convenience of having the balance lead points right beside where …
DenCo QRP Batt Mk II
This is a simplified multiple 3Ah battery set to be used separately or in parallel using a Powerpole distribution block. This build came from a discussion with Steve KM9G, pondering the incorporation of batteries into the lid of a Pelican-like case. My intended case for this is the Nanuk 910 case. This battery model itself …
DenCo Batt Mk IX
Once again the summer heat made the battery production facility inhumanely hot for factory work and production (a.k.a. the garage). That coupled with added parallel workload left the innovation division largely stalled for Q1, Q2, and Q3 of 2021. However, a build was finally produced. The DenCo Batt Mk IX uses a Daly BMS rated …
DenCo Milk Crate Backup Power
This large 280Ah LiFePO4 prismatic build incorporates a milk crate as a carry/protection container. It uses a 250A Daly BMS, to allow for powering a WZELB 3000w 12V 120V Pure Sine Wave inverter. This is the largest capacity battery build that DenCo has made to date. This battery backup power system utilizes a Victron Bluetooth …
DenCo Batt 9
Batt 9 is a build with tried-and-true components. It uses the HX-4S-F100A BMS, which is probably too permissive for the cells, but is quite reliable. The cells once again (like the Mk IV) are LiitoKala “7Ah” cells in 4S1P. The changes to this battery are the usage of Anderson PowerPole connector for the charging port …
DenCo Batt Mk VIII
With this late 2020 development, I found a BMS that seemed to match the capabilities of a new BatteryHookup 32650 cell rated at 6Ah. This led to a new version of the battery that could still handle QRO but not quite FT-857D 22A draw for digital transmission duty cycles. This Mk VII-like battery incorporates a …
DenCo QRP Batt 2
I thought it was about time to duplicate the QRP Batt 1 that I had sent to NJ7V Charlie, now that I had a new Icom IC-705. While this protection board limits to 8A, these cells are capable of pulse to 150A. Perhaps higher capacity, lesser drain 26650’s by K2 would be suitable for this …
DenCo Batt 8
This battery pack consists of VariCore cells and the slim BMS, as popularized by the Mk VI. It also has a USB module and is padded. This battery was created after a long hiatus of summer 2020 heat (and adjustment to COVID lockdown life) which made the garage workshop unbearable for working on battery projects. …
DenCo QRP Batt Mk I
I have a small cube-like 3Ah LiFePO4 battery from a commercial manufacturer popular with hams these days. I used it mostly with the KX3 on trips. I saw that the K2 26650’s could be arranged in a 2×2 fashion to create the exact same form factor. Couple that with a newly discovered tiny protection board, …