If it is a waterproof charger (ProTournament, ProSport, ProSport Generation 2, XPS or ProMite), it does not have external fans on it. It dissipates heat through the casing, so it does get warm to the touch. Most often we describe temperature as: you can touch the charger, but you would not want to carry it across the room.

How do I wire the charger to my 24-volt or 36-volt battery system?

Our waterproof chargers are designed to charge 12-volt batteries within a 12/24/36 volt system. If you have a waterproof battery charger (ProTournament, ProSport, ProSport Generation 2, BassMaster, ProMite or XPS) and you want to connect it to either a 24-volt or 36-volt system, just connect one set of leads (positive and negative) to each battery in the system (the leads are fully isolated from each other). You do not have to disconnect the jumper that connects the positive from one battery to the negative of another battery. The same goes for batteries in a 12-volt system.....just put one set of leads (positive and negative) on each battery. So a 2 bank charger charges 2 batteries, and a 3 bank charger charges 3 batteries.

Can I connect the charger to only one battery? What do I do with the unused leads or terminals?

If you are using a waterproof charger and want to charge 1 battery on a 2 bank charger, you will need to connect both leads on that one battery. If you are charging 1 or 2 batteries with a 3 bank charger, you will need to connect all the leads on the 1 or 2 batteries. At no time should the charger be run without all the leads being connected to a battery(s).

Where can I mount the charger?

Make sure you have adequate ventilation for cooling when charging. It can be mounted in any direction; it can even be mounted on the underside of a hatch, or any wall that you have enough room (as long as it is mounted as far as possible from the batteries or fuel tank). Don’t mount them on carpets---if you have no other location, mount it on either a board or with some kind of spacers to lift the charger off of the carpeted area. If the charger is mounted in an enclosed space it is best to open a hatch during the first stage of charging.

My charger is tripping my GFCI circuit breaker on my outside outlet?

All chargers that use this technology to charge batteries bleed a little voltage on the ground, which should be below the GFCI trip point. Test the charger on a non-GFCI outlet (inside the house) and see if the charger works. If it works, then most likely something is wrong with the GFCI outlet. If it does not work on an inside outlet, then there is something wrong with the charger.

Can my charger be left on for an extended period of time?

The newer 3-step chargers have a float mode (3rd step) which maintains the batteries at 13.3 volts (for lead-acid batteries) and 13.8 volts (for gel-cell batteries). As long as the batteries are in good condition and you maintain your water levels inside the batteries periodically (for lead-acid batteries), then you can leave the charger on between fishing, boating trips, etc.

What charger setting do I have to use for AGM batteries?

Most AGM batteries can charge at the lead-acid setting on a battery charger. Our chargers are factory set for lead-acid so you do not have to make any changes to the charger.

Can I charge a lead-acid battery and a gel-cell battery together?

Our chargers charge and float lead-acid batteries at a different voltage than gel-cell batteries. You should not mix battery types because you are going to compromise a battery if you charge it at the wrong setting.

What does it mean if I have a blinking light?

If you are getting blinking lights there are two things that could be going on.

1. There could be a problem with your charger.

2. There could be a problem with your batterie(s) (even if they are new).

The first thing to check is to see that the polarity (negative and positive) has not been reversed. If they are set up correct, then disconnect the leads from the batteries and with the end of the leads not touching anything turn the charger on. You should get a solid green light and the output of the charger should be 13.3 volts. If the light(s) still blinks then there is a problem with the charger. If you get a solid green light the next step is to isolate each of the batteries, by doubling up the leads on one of the batteries. Repeat this until you have isolated each of the batteries. If it blinks on all combinations of the batteries, then there is a problem with the charger. If it blinks on one of the batteries, then that battery is the problem.