If connected incorrectly, solar regulators with current shunts can register twice your true solar input. Here’s why – and how you can to fix it.
Lithium-ion and lithium-iron-phosphate (a lithium battery rival) are two types of rechargeable batteries. They share some similarities but differ in high-energy-density, long life-cycles, and safety. Lithium-ion is used in smartphones and laptop PCs. Lithium iron phosphate (LiFEPO4) is that used in RVs etc.
Blade fuse problems in caravans include fuses and fuse holders burning or melting. Fire risk is high because the fuses may continue to conduct. Ongoing current flow, however, may heat the fuse holder to burning point. This article by RV Books explains why and how to overcome the risk.
Lighting for caravans has changed. Now, by far the most practical and least energy drawing are LEDs (light emitting diodes). This article shows why.
This article shows the sizes and lengths of electric supply cables for caravans and motor homes legally required in Australia and NZ.
Speeding battery charging from generators is cheap, effective and relatively simple. This article by RV Books’ Collyn Rivers explains how to do it.
Quietening caravan water pumps is simple to do at no or trivial cost. This article from RV Books’ Collyn Rivers shows how.
Using grid connect solar modules for RVs is readily done but needs an MPPT regulator. This article by Collyn Rivers explains how and why it is done.
To make caravan fridges work as claimed, and draw less energy, is cheap, simple and easy. Many can be transformed. This article shows how.
Initial charging of a deeply discharged battery is generally limited to a basic dc-dc charger’s capacity: not the alternator’s. Dc-dc chargers under 20 amps thus usually take longer to charge close to flat batteries to half charge. Thereon, charging is hugely faster.
Battery charging and battery chargers are often misunderstood – causing batteries to die before their time. This article explains why and how to avoid it.
Fuel cells for RVs are non-polluting and ultra-quiet. Whilst initially promising their initial and running costs still excludes general RV use.
Electrical converters in RVs supply 12 volts from 230 volt power. They work well from 230 volts, but not for long-term camping. Here’s how to fix the problem.
Twelve-volt caravan systems may be twin-wire or chassis return. Twin-wire is usually best. This article explains why – and which to choose to avoid problems.
Variable voltage alternator problems with caravans and motor homes arise when charging auxiliary batteries. Here’s why and how to fix them. These alternators are, in particular, installed on many post-2013 vehicles.
TV interference from LEDs is an issue worldwide. It is mostly caused by LEDs in the same home (or RV) as the TV. This can be checked by turning them off. Another indicator of TV interference from LEDs is good daytime reception until lights are turned on. In the worst cases, TV reception is unwatchable, or not even obtainable.
Caravan fridge problems are due to poor ventilation, inadequate cable size and/or insufficient power to drive them. Here’s how to fix them.
Buying inverters for caravans can confuse. Prices vary for products that may seem identical but are not. Here’s what to buy.
Despite their very small batteries LiFePO4 jump starters really do work. This article by Collyn Rivers explains how and why. A lot of power (the rate at which energy is used) is needed. The amount of energy (the ability to perform work) required, however is surprisingly small. In the days of vintage cars, a strongish 55 kg (120 lb) girl could hand crank start a 4.5 litre Bentley with relative ease.
Circuit breakers and fuses in caravans both cut the current, but in different ways. Here’s how to know which best suits circuits and appliances protected. Those for 230 volt grid or inverter supplied circuits must be specified and installed by a certified electrician – who will install circuit breakers etc anyway. Circuit breakers and fuses for RVs (for 12/24 volt circuits) can be self-installed by those familiar with such work.