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  1. nifty-stuff.com

    DIY CPAP UPS - LiFePO4 Battery - Dead Simple DC Power For CPAP

    I felt like I was hijacking / monopolizing this awesome CPAP discussion: How to power a cpap ... so I thought our of respect for the guys in that thread, I'd start my own thread. :) Short Details: The SF Bay Area has had a lot of blackouts and my girlfriend's elderly Grandfather wants a...
  2. nifty-stuff.com

    Bluetti AC200P AC200 As Fridge Freezer Backup + UPS + Keeping it Topped Off

    Hey guys! I've been searching this great forum for everything related to the Bluetti AC200P which I'm getting in the next week (I'm including the word AC200 for easier search result purposes) ;) I mostly got it for emergency outages... which are becoming more frequent and longer in the San...
  3. nifty-stuff.com

    ADU (tiny house) Battery ? Grid Tie ? Hybrid System ? VS Rewiring ?

    California made some really big changes to state laws regarding ADU's (Accessory Dwelling Unit), making it MUCH easier for people to add a small house onto their existing residential property. We're in the process of evaluating a few companies (sonderpods and habitat adu) to have a...
  4. nifty-stuff.com

    TESLA LiFePO4 Batteries on AMAZON!! (ya, ok, right)

    So, I was recently watching Will's great new milk-crate video (below) and saw that he's using this battery (his link from the video) Battery $359 https://amzn.to/2YqeTjW Will does a great job reviewing his batteries, and I was expecting more details, links, or even videos regarding the battery...
  5. nifty-stuff.com

    Charging In Series - Discharging In Parallel ? Lead Acid

    How many "You're an idiot, you're going to blow yourself up!" questions do I get to post before I get booted off the forum? ;) I've searched Google for hours and can't figure out the answer to this question. Say I have two identical 12V lead-acid batteries and this cheap charge controller...
  6. nifty-stuff.com

    34.5 Volt Panels PWM Charge Controller & 12V Batteries - I Don't Get It?!

    Hey guys, sorry this is probably a dumb set of questions, but here goes... I have a handful of 34.5V panels I got cheap (see attached) from a friend. I thought this was going to be a simple way for me to "play with solar", but turns out to be a rabbit-hole of confusion and questions :( It...
  7. nifty-stuff.com

    All-In-One - Is A Battery Required To Use Inverter?

    I have a handful of old solar panels (see attached) and I'd love to use them for emergency daytime power... no battery, etc., just juice right from the panels to run simple 120 volt devices. ... but I don't know how to do this without using a batter. I see @Will Prowse 's great article here...
  8. nifty-stuff.com

    Help Deciding - Adding More Panels - Which Inverter String / Micro Which Direction South or West

    Hey all, I could use some help! My existing 3.96 kW system (10 years old) consists of: 18 REC 220 W panels 18 TIGO optimizers SMA Sunny Boy SB3000US Inverter ... and I need more power (probably double)! My original plan was to add more panels + new TIGO optimizers + new inverter, but pretty...
  9. nifty-stuff.com

    West Facing & Oversize or Battery Storage - What's Better For Time Of Use Rate Plan?

    I'm in California on a Time Of Use rate plan (grandfathered into E-6) where electricity is much more expensive during peak usage times from 4pm - 9pm (when solar isn't producing as much... i.e., the duck curve of solar & consumption). I already have a 3kw system facing south, but it is no...
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