2 ms·

The core idea is great, but the details are not. I am looking at something like that for a while and these are the comments: - the capacity is too low. For som

The core idea is great, but the details are not. I am looking at something like that for a while and these are the comments: - the capacity is too low. For something to put on the roof of the car when going somewhere it as at the limit, but the usability is low: to power a few mobile phones a battery bank is much cheaper, to generate electricity for a few days of camping it is too low. For home it is way too low, I would add a few batteries and more panels, maybe 500W for panels and >2k for batteries. If I have a power failure I need something to keep my desktop and fridge running over night and run on solar during the day, that is the minimum where I consider buying, otherwise a UPS will give me more value. - the price is too high for a gadget and with such a low capacity it is a gadget, not a serious electricity source. Probably a higher price with a lot more capacity is a better deal.

jsjohnst 6y ago
Yeah, I don’t understand why they are only doing 500W for the batteries unless ultra portable size was the goal. I’ve made lots of batteries using Samsung 18650 cells (via a spot welder and nickel strips) and 500W is fairly simple to do. One of my drones draws over 3,000W as an example. Further, usually you care more about Wh and not W alone anyway. For example, the Samsung 25R 18650 (which I use frequently) is about 80W for a single cell fully charged, but is only up to about 10Wh. So for the 500Wh claim, that’s around $100 in batteries if new and Samsung, cheaper if alternative brands. So assuming you’re a DIYer (which obviously this listing isn’t targeted directly at): Batteries - around $100 500W inverter/charger - around $80 2x100W solar panels similar to ones pictured - Around $150 20ft of cable - around $20