The impetus for this article was, in fact, a question we had from a reader wondering how to keep their medications cool while camping in summer. Motorhomes are a little different from caravans in that they have two batteries — one for driving (vehicle battery) and another for everything else (leisure battery) Vehicle battery As well as passive coolers designed for insulin, there are some neat little powered devices. Absolute best of the choices is the LifeInABox portable medicine fridge. If you’re not getting any power to your caravan or motorhome when relying on the leisure battery — even after you’ve been charging it for a substantial amount of time — then there could be a fault causing it to drain.

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The key number is the mAH (milli-ampere hour). You’ll find powerbanks as low as 1,000mAH and as high as 30,000mAH. The higher the number, the more charge you’ll get, but the trade-off is weight and size. Some airlines won’t allow very high-powered battery banks. Start the engine at regular intervals when it’s not in use — If your caravan or motorhome is in storage for long periods of time, you can keep the battery in good shape by starting the engine every now and again. We recommend doing Remember also that most appliances you use will have been designed for the domestic environment and may therefore be vulnerable to condensation. Maintenance When connecting to the probe tip to measure resistance it automatically becomes an instant ohmmeter and auto ranges without manually selecting it. It measures ohms from 0 to 15 Meg ohms. To power appliances and gadgets in a campervan, we use what we call 12v leisure batteries. You might also hear them called deep cycle batteries.Caravans offer a level of liberty and convenience to holidaymakers that’s rarely matched — when everything is going well, that is. Do you want to have the option of powering your electrics by hook-up? If so, you will need to install an AC Power system. If you don’t want the headache and have room in your budget, there are plenty of companies that you can outsource the work to. A generator must always be used outside because of the danger from exhaust and carbon monoxide. Always place it downwind and make sure the fumes do not go directly into other camping units. You will probably need to have a ventilated housing to shield it from rain and help keep the noise disturbance low. Do not forget the exhaust end of the generator will get very hot and can be a hazard to children and animals and give risk of fire if it is near long grass or other flammable material.

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Sometimes the problem might be more complicated than a simple wiring issue, so you’ll need to have your caravan or motorhome properly serviced by a professional. To charge your batteries, you will need to install a battery charger like the Victron Energy Blue Smart. You can monitor the progress of the charge using the Victron Vanlife app. The available power from continental hook-up points will often be less than the UK and a supply as little as 5A or 6A is common. Although the electrical standards require a 25m cable with a CSA of 2.5mm sq these are rarely available for sale so if you must get a 1.5mm sq CSA with only 15m of cable consider the following: Based on these calculations, you will need around 360 watts of solar to keep your batteries sufficiently charged, which is easily doable on most medium to large-sized vans.For example, if you require 100 amp-hours (Ah) to power your devices and appliances (as calculated in step 4), your batteries should total at least 200 Ah. Passthrough charging is something to look for too. It means you can charge a phone at the same time as the powerbank itself.

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or volts is essentially mains household power. Typical household appliances such as TVs and fridges require 240v to run. Depending on the country, you may encounter different mains voltage, such as 110, 120 or 130. I bought a 180w solar paneland then the challenge – a solar generator system with the capacity to cope and be portable. VOLTAGE REFERENCE SUPPLY MODE - Supplies from 0 to 5 volts in half volt increments to the probe tip. This feature can provide a known reference (that is good) voltage to simulate sensors. It's a great compliment to your OBD scanner. The display shows both the set voltage and the tip voltage, so you can see if there is a short in the circuit. The trouble is, the internet is like a rabbit hole. It’s easy to get overwhelmed by the multitude of (often conflicting) information. If you’re thinking of getting a larger solar panel fitted into the roof of your campervan, then your installation will, most probably, integrate into your vehicle electrics and power your leisure battery.DC Power: Direct current (DC) power can come from multiple sources, including leisure batteries like the ones you’ll have in your van. For goodness sake, please don’t buy a disposable powerbank – apart from being very low mAH and slow, they’re an environmental menace. What to look for in a portable charger If faced with a reverse polarity situation it is possible to make up a short adapter lead to deal with reverse polarity, where the wiring within one end of the lead is reversed. You should only prepare such an adapter if you are sufficiently competent. Make sure that the adapter is clearly marked to indicate that the wiring is reversed. Reverse polarity explained If the thought of installing your electrics system has you in fits of nervous sweats, you are not alone. One of the most daunting aspects of the entire build was the electrics. When I first started looking into it, I felt like I was reading another language.