PayPal: Add Cigar Volt Meter RED to cart 21mm STD Cigar Sockets LED COLOUR (Red) Using a simple (SOC) State of Charge graph you can determine  the remaining capacity of your battery once the load has  switched off and battery is at rest. PayPal: Add Hella type adapter to cart Hella type adapter 16 Amp Rating Coverts a Hella type socket to  a Cigar type socket. $9.95 Ea #Anchor2 ABR-SIDEWINDER CIGAR VOLTMETER $24.95 BLUE LED AVAILABLE SEE LH SIDE OF PAGE