Rebling 7002 standard duty 250F green receptacle and gasket is the female battery connector for your next battery box.  Carries 750 amps of continous current or up to 1500 amperes peak.  The Rebling 7016-1 T-handle plug is ideal for cable terminals up to 3/0.

Rebling plastics has developed a line of high quality high current milspec battery connectors used primarily in aviation applications.  Pricey, but extremely safe and extremely durable, these will last in electric vehicles for years providing a very low resistance high current connection with the convenience of a half-turn handle to disconnect the pack.

BLUE LED Pushbutton Switch. Normally open. Depress switch to latch closed. Press again to release back to open. 3A/250v. LED 5-12v

LEM CAB300/500 CANbus current sensor for automotive applications : Very high accuracy flux gate current monitoring for hybrid and/or electric vehicle battery packs  No offset and no temperature drift.
+/- 400/500A. Runs on 12v.

 This 18mm Green LED with chrome bezel is the most gorgeous pilot indicator we've found.  And the easiest to wire.  Operates from 12vdc.  We use it to indicate positive contact closure on our battery packs.

 This 18mm Red LED with chrome bezel is the most gorgeous pilot indicator we've found.  And the easiest to wire.  Operates from 12vdc.  We use it to indicate negative contact closure on our battery packs.

 16 x 16 inch silicone rubber heating pad with adhesive backing.  120vac, 200 Watts.  Works well to heat Tesla Battery.

Ferraz Shawmut A30QS400-4  This is a semiconductor fuse for use between battery pack and controller on smaller systems.  This fuse will do up to 1000 amps for  brief accelerations.

Shown with P243G fuse holder. *

* Fuse holder not included - available separately.

Liquid tight strain relief connector.  This is the perfect way to pass 1/0 or 2/0 cable through a bulkhead or battery box wall without chafing or cutting insulation.

Made of Polyamide 6 and neoprene this provides an IP68 water tight seal as well as protection from sharp edges.  Resistant to salt water, weak acids, weak alkalis, alcohol, ester, ketones, gasoline, mineral oil and good from -30 to +80C with intermittent to 150C.

Inner diameter adjusts from 0.35 to 0.63 inches. Perfect size for 1/0 or 2/0 shielded cable.   This gland will also work to protect our braided nylon AN6 coolant hose.

2/0  EXRAD XLE 1000 VOLT Shielded Cable
-70 - 150°C

EXRAD XLE 1000 Volt shielded cable designed specifically to handle the higher voltage and current required by today’s hybrid and electric powered vehicles. XLE is an extremely flexible, yet tough insulation. These cables significantly reduce the effects of EMI and RFI. The jacket insulation isolates any stray currents making this cable very safe.

Sold by the foot.

 This is a 12v water pump designed for EVs with 50 lpm flow rate - 25lpm at over 7 meters with plenty of power to cool any system.  

This is a very nearly identical version of the Pierburg CW50 pump from China at a lower price.  Currently used on Audi/VW.

 Minitactor switches up to 50 amperes at anything lower than 1500vdc.  Ideal for switching Photovoltaic voltages.

 4AN to 6AN Bulkhead Adapter.  We use these to mount in the wall of a cabinet.  It allows us to connect the 4AN hose on the inside of the cabinet that connects to Tesla battery module cooling fittings.
We put the 6AN side on the outside allowing us to connect larger coolant hoses externally with the pump and heater or heat exchanger.