Efest - Chinese battery company.
https://www.18650batterystore.com/Articles.asp?ID=259 (can apply for wholesale)
https://www.superbreakers.net/motor-control-selector-switches
https://invertersrus.com/product-category/power-inverters/pure-sine-wave/48v-psw/
https://invertersrus.com/product/sp-ic2248/
Leviton 1288 30-Amp 120-Volt Toggle Double-Pole AC Quiet Switch (Amazon $59)
https://www.imrbatteries.com/awt-l8-8-channel-battery-charger/
Batteries Plus Bulbs (10% off buy online, pick-up: CDP10047)
http://www.batteryclinic.com/recycle-center.php
https://kit.com/jehu/lithium-battery-cell-sources
EV West - Power Solutions for electric vehicles. Has a lot of overlap with solar applications, including batteries, chargers and converters.
https://theinverterstore.com/product/1500-watt-solar-panels-mppt-charge-controller-kit/
From jimginnyohio:
Kill-O-Watt Meter: https://goo.gl/szQg7W
Sense Home Energy Monitor: https://goo.gl/EL537X
Sense Home Energy Monitor with Solar Bundle: https://goo.gl/iFeQks
Sun 1kw grid-tied inverter with Limiter (45-90v)
MPP
SunG Grid Tie Inverter with Limiter
https://www.windynation.com/ - Battery fuses and a ton of other stuff
Powerwerx.com - Supplies and tools for DC power applications, including Anderson connectors and tools.
LARGE - Custom Lithium ion Battery Pack. Dongguan Large Electronics Co., Ltd was established in 2002, and the headquarters located in Gaosheng Science & Technology Park, Dongguan city, Guangdong province, China