Stubat
New Member
- Joined
- Apr 24, 2020
- Messages
- 3
hello, all. Been browsing some BMS messages and finding good stuff here. Figure should join in, see if I can learn and be useful...
A half/century+ of electronics experience, much of it power and backup power related. I'm in the Calif redwoods, lots of power issues due to weather and, lately, politics. So, I had a battery setup and a pretty efficient household. Was FLA golf cart batteries for 5 years, running a cobbled up pile of small and large inverters/UPSes and charging from tweaked LED power supplies or server supplies. All electronics from Ebay, used or "As-is". System was 12V 800AH, 300W UPS for critical loads (Lights, comms) 3000W sinewave inverter for 'Grunt".
New setup is looking to be 1200 LG 18650 cells, 2.6AH each, pulls, in a few 10S 30-40P banks, feeding a recycled Dell 1000W sinewave UPS. (36V up to 40A draw). Charging and BMS still being configured. 2 Cisco 42V 27A router P/S likely to provide the charge thru a programmable CV/CC power converter. Most of the house draws about 100W, comms and big computer 50"4K display adds about 150-200. Refer and freezer couple hundred total watts once running, modded for soft start. 120V 12,000BTU Pioneer mini-split heat pump can run on UPS but only at lower settings. I use either a 1800W Westinghouse or 3200W Harbor Freight inverter generator for long outages, daytime only to charge or if i need heavy heat pump usage.
Actual solar maybe down the road, but I'm mostly on-grid, and don't have a lot of sun in these trees. Have done small solar for RVs, and spec'ed Mom's 5.3KW solar setup. So a bit of experience there. Anyway, take care, stay safe and healthy! God bless, Stu
A half/century+ of electronics experience, much of it power and backup power related. I'm in the Calif redwoods, lots of power issues due to weather and, lately, politics. So, I had a battery setup and a pretty efficient household. Was FLA golf cart batteries for 5 years, running a cobbled up pile of small and large inverters/UPSes and charging from tweaked LED power supplies or server supplies. All electronics from Ebay, used or "As-is". System was 12V 800AH, 300W UPS for critical loads (Lights, comms) 3000W sinewave inverter for 'Grunt".
New setup is looking to be 1200 LG 18650 cells, 2.6AH each, pulls, in a few 10S 30-40P banks, feeding a recycled Dell 1000W sinewave UPS. (36V up to 40A draw). Charging and BMS still being configured. 2 Cisco 42V 27A router P/S likely to provide the charge thru a programmable CV/CC power converter. Most of the house draws about 100W, comms and big computer 50"4K display adds about 150-200. Refer and freezer couple hundred total watts once running, modded for soft start. 120V 12,000BTU Pioneer mini-split heat pump can run on UPS but only at lower settings. I use either a 1800W Westinghouse or 3200W Harbor Freight inverter generator for long outages, daytime only to charge or if i need heavy heat pump usage.
Actual solar maybe down the road, but I'm mostly on-grid, and don't have a lot of sun in these trees. Have done small solar for RVs, and spec'ed Mom's 5.3KW solar setup. So a bit of experience there. Anyway, take care, stay safe and healthy! God bless, Stu
