Ideal for emergency jump start and charging portable electronics
For a small and compact battery charger with reliable power to bring along in case of emergency, consider Schumacher’s SL1314 600 Peak Amp Lithium-Ion Jump Starter and Power Pack.  Quickly jump start power sports vehicles, motorcycles, and 4- to 6-cylinder cars with this jump starter.

The Manager30 BMS1230S3R-NA is a battery management system featuring a color display and mobile phone connectivity for complete battery management for charging auxiliary batteries used in RV and overlanding vehicles.
The dual battery system incorporates AC, DC and solar inputs to achieve the best charge for an auxiliary battery.

Dometic Portable Lithium Battery Features:
Enables you to travel off-grid for longer
Three-way charging via 12 V DC socket, solar panel or AC home power
Lightweight, ergonomically designed stainless steel carry-handle
Built-in LCD screen displays: capacity, charging status and output
Specifically designed for Dometic CFX and other powered coolers
Powerful battery cells provide 512 Wh of energy, 40 Ah
Designed to power a Dometic CFX for a weekend or longer
More Power when you’re On the Go
When need need more power for longer adventures, the Dometic Portable Lithium Battery is a lightweight and compact solution to keep all of your food and drinks cool.
Designed to work with Dometic CFX coolers and other 12V appliances, this portable battery enables you to travel off-grid for longer.