In order to save fuel and not freeze in a car in conditions of low ambient temperatures, it will be justified to foresee some means of heating in the car emergency kit (kit, NAZ). For convenience, we will divide them conditionally into passive and active.
Heating facilities, communications, batteries and chargers in an automotive emergency kit or kit.
Passive heating means include blankets, rugs, sleeping bags, extra warm clothes, etc. To active gas lamps, all kinds of chemical and catalytic heating pads, etc. Why give preference? It will be best to dwell on the golden mean. For example, on a set of fleece blanket, which is quite compact when folded, and some kind of catalytic heating pad (Zippo, Kovea). Do not forget to stock up for her with special purified fuel.
extreme situation stable and reliable communication. But unfortunately, many modern mobile phones and smartphones, along with many advantages, have one critical drawback: low battery life on a single charge. In order to somehow minimize this vulnerability, of course, you can use car chargers from the cigarette lighter to recharge them. But just in case, you should still have a spare mobile phone in your car, simple and inexpensive, with a black and white screen. He may not have most of the features of the smartphone, but his battery lasts for several days. And even for a week, even with very active use.
Selecting lights, lamps and other devices powered by batteries (batteries) in an emergency car kit (kit, NAZ), you should make sure that they are of the same type in advance. For example on the most common AA or AAA. This will not only allow providing interchangeability of batteries in different devices, if necessary, but also optimizes the number and weight of spare sets. When choosing between batteries and batteries of the same format (for example AA), you should give preference to the latter. Yes, initially at purchase, they will come out more expensive, but they can be recharged and reused.
battery chargers (for example, AA or AAA) powered by a cigarette lighter, it makes no sense, unless of course you are not going on a long car trip.
But a small portable charger with one AA battery (battery) will be able to help you out in urgent or urgent cases when you need to urgently call, and the battery of your mobile phone or smartphone has run out of charge. This adapter comes with several adapters designed for various types of input jacks of phones, including mini-USB. Depending on the characteristics of the built-in battery of a mobile phone, one AA recharging battery (battery) can give it from 25 to 40% of the charge.
In addition, there is positive experience in recharging e-books and camcorder batteries from such a portable device, which are equipped with a mini-USB connector and, due to their technical characteristics, allow charging through it.