The B-130X managed to pack in 25% more power than the B-124X while achieving a slimmer, more compact design. The B-130X also introduces a new component absent from its predecessor: a fuel gauge integrated circuit. This circuit allows for a more accurate read on battery usage and charging rates. Finally, while the B-124X requires you to manually switch between outlet and hardwire mode, the B-130X can detect how it's wired and switch automatically.

For more detailed comparisons, see the table below:

The Ultra Battery can be either connected to a cigarette lighter-type power socket or hardwired to your vehicle's fuse panel. When hardwired, the B-130X is able to draw up to 9A of power, versus 5A when plugged in using the cigarette lighter power adapter. Therefore, hardwiring is recommended to enable the fasfaq charging time. Note: unlike its predecessors (B-124 and B-124X), which have a Cigarette | OFF | Hardwire switch which must be matched to , B-130X has an ON/OFF switch and automatically adapts its power draw (charging current) to the wiring method.

Yes indeed! The Ultra Battery is powered by Lithium Iron Phosphate cells (LiFePO4). Power banks designed as backup batteries for phones and portable electronic devices are usually of the Lithium-ion (Li-ion) or Lithium-polymer (LiPo) type. Those high-density batteries are not suitable for use in a closed parked vehicle (where temperatures can reach high–and low–levels) as they risk causing a fire or explosion. LiFePO4 batteries can sustain more extreme temperatures, more charge cycles, and are also more environment-friendly.

mAh can be misleading if we don’t consider voltage. Tip: Think in terms of watt-hours (Wh). Of course, the type of battery should be taken into consideration: high-power density batteries have a higher capacity for a given volume. In other words, at the same capacity, a LiFePO4 battery is bigger than a Li-ion or LiPo battery. However, consumer electronics and car accessories generally assume different voltage values. The milliamp rating of power banks is usually based on a voltage of 3.7V. This means for a 10,000 mAh battery, the total capacity is 10,000mAh x 3.7V / 1,000 = 37Wh. By way of comparison, the Power Magic Ultra Battery has a capacity of 7,500mAh at 12.8V, which translates to 96Wh.

Yes. B-130X is compatible with 12V and 24V systems.

Yes, in carry-on luggage, in theory. But since batteries can be sensitive items to bring on an airplane, check with your local operator to be on the safe side. According to the IATA (International Air Transport Association), spare batteries under 100Wh can be carried on a plane in a carry-on luggage–NOT in checked luggage–like most lithium batteries, without requiring the operator’s approval.