How many batteries can I charge at a time with the TravelSol Flex Charger?

The TravelSol Flex Charger can charge 2 AA, 2 AAA, 2 C, and 2 D batteries at a time.  You can not charge two different batteries at the same time, such as an A and a C.


Are Solar Trickle Chargers Any Good?

If used correctly, for the right goal, solar trickle chargers work great.  Solar trickle chargers are not designed to fully recharged drained or nearly drained batteries.  A solar trickle charger is designed to maintain the current level of a deep-cycle battery.  In other words, you can have a vehicle sitting for an extended period of time without having the battery go dead from disuse because the solar trickle charger keeps the battery level maintained.


What does the charge controller do?

A charge controller ensure the batteries don’t get overcharged in bright sunlight as well as to monitor the amount of light in the surrounding area and turn the LED (light emitting diode) light on and off.


What is the difference between a PWM and MPPT charge controller?

Pulse-Width Modulating (PWM) charge controllers use complex algorithms to determine the amount of charge going to a battery and slowly taper off charging as the battery becomes full. One of the greatest advantages of PWM controllers is that they have been around for many years, are cheaper, and are available in a wider variety of sizes for different applications. Some drawbacks of using a PWM controller are that when sizing a system the controller must match the voltage of...


Will the TravelSol 2x and Isol 4x charge my Nook?

Yes, the TravelSol 2x and Isol 2x can charge your Nook.  They can also charge cell phones, ipads, kindles, cameras, and other mobile devices.


If it is raining can I still Charge my battery?

Yes, You cant still charge your Battery using this Device because it is Using the latest in amorphous solar cell technology this panel works even under low light and cloudy conditions.


What is a “dead” battery?

Because most of our solar kits for any application use rechargeable batteries that are charged externally using a solar panel, the question of what constitutes a “dead” battery often comes up. Batteries only store power, and over time their capacity to hold this energy naturally decreases. A battery is only branded as “dead” when it is no longer able to be recharged. Another thing to note is that most appliances will require a minimum voltage to run, which means the...


How long is the typical shelf life of an unused backup battery?

An unused solar backup battery can last well over a year if properly taken care of. Like any battery, one that is left depleted will eventually lose its ability to hold any charge at all. To combat this it is strongly recommended to use a trickle charger to slowly keep a battery charged part way to full. This should be done as often as possible but at minimum once a month to help ensure the life of the battery...


If it is raining can I still Charge my battery?

Yes it will still Charge you battery but you will have to spend a longer time to charge it


Can I replace old batteries when they run their life cycle?

Yes, You can. When you purchase your solar lights, the rechargeable batteries are often already included in the fixture. After 1-2 years (or a matter of months in some cases) it is quite normal to see their performance decline. Once you notice that the lighting time is considerably diminishing and the lights are not as bright as before, it’s probably time to replace your rechargeable