A prototype handheld, compact, rapid thermocycler was developed for multiplex analysis of nucleic acids in an inexpensive, portable configuration. Instead of the commonly used Peltier heating/cooling element, electric thin-film resistive heater and a miniature fan enable rapid heating and cooling of glass capillaries leading to a simple, low-cost Thin-Film Resistive Thermocycler (TFRT). Computer-based pulse width modulation control yields heating rates of 6–7 K/s and cooling rates of 5 K/s. The four capillaries are closely coupled to the heater, resulting in low power consumption. The energy required by a nominal PCR cycle (20 s at each temperature) was found to be 57 ± 2 J yielding an average power of approximately 1.0 W (not including the computer and the control system). Thus the device can be powered by a standard 9 V alkaline battery (or other 9 V power supply). The prototype TFRT was demonstrated (in a benchtop configuration) for detection of three important food pathogens (E. coli ETEC, Shigella dysenteriae, and Salmonella enterica). PCR amplicons were analyzed by gel electrophoresis. The 35 cycle PCR protocol using a single channel was completed in less then 18 min. Simple and efficient heating/cooling, low cost, rapid amplification, and low power consumption make the device suitable for portable DNA amplification applications including clinical point of care diagnostics and field use.
USB or Battery Powered Tent Heater? - Backpacking Light
If you want to use a battery operated heater to actually warm up the entire volume of air inside your car or truck, there are two interconnected things that you need to consider. The first is how much electricity the heater will need to use. For example, let’s say that you’re working with a 500 watt battery powered heater that’s connected to your car battery. In order to find out how much amperage this heater draws, you can divide the wattage by 12 V.
MCS BLP17M DC - battery powered gas heater - YouTube
These small, portable heating units are technically the largest battery operated units you’ll find, which goes to show just how limited the uses of battery power are for generating heat. Most of these units will plug directly into the vehicle’s cigarette lighter or 12v outlet and run straight off the car’s battery.
Battery operated small fan heaters, transformer powered small fan.
If you want to go for battery operated heat product, you won’t be disappointed, because of these radiators with batteries have high operational strength, using electric batteries and heating the room profoundly. One of the most well-liked battery furnace is portable battery operated heat product, which you can use to heat up your garage, storage, camp-house, RV vehicle, car, or use it as a nice additional tool when going camping or hiking. Batteries can last up to 8 a long time, when you want to make sure the space you wish to be heated is warm enough, you should always come with an extra set of two batteries along with you. Addititionally there is home battery powered radiator accessible, so that you can cut your electrical bills almost by 50 percent.Radiators with batteries are also available in form of body heaters, that may come in handy when you're out camping or hiking, portable car heaters, home battery operated radiator and also other battery operated heat systems, like battery powered boilers. Radiators with batteries and other heating systems powered and involved in batteries are very effective and eco-friendly, protecting the surroundings with substantial yearly energy savings. For example, you will get more workable hot water with battery powered boiler, than you'll with regular electric boiler product. Precisely the same rule is true to battery house heat tank, where home battery powered radiator can easily heat the same space using less energy than radiator running on electricity.