The higher the number, the faster they will recharge. A 5 amp charger will re-charge mid-range batteries fully in 10-12 hours and should be fine for most fishermen. But if you need lightning fast recharges, or if you have batteries that are 120 amp hours or higher, we recommend purchasing a 10 or 15 amp charger.
How long does it take to charge a 12 volt boat battery?
A 12-volt battery could take up to 12-24 hours to charge fully. When recharging your battery, remember that if it gets too hot while you’re charging it, you need to stop charging. It should not get too hot above 125 Fahrenheit. Ideally, slow charging your batteries is the best option.
How long should it take to charge boat battery?
A charger with 15 amps, for instance, will take about two hours to fully charge a battery at a 25-percent discharge value. Chargers with only 5 amps, however, will need a full six hours with the same battery.
How do you charge a trolling motor battery?
Maximizing Battery Life
- Battery and boat manufacturers recommend that you fully recharge your trolling motor battery as soon as possible after use. …
- It’s a good idea to use a trickle charger during the offseason to keep power flowing through the battery, or to re-charge them every month.
Can you overcharge a trolling motor battery?
DO NOT mix battery chemistries. Choose one, either flooded, AGM or Gel and never combine any of them. DO NOT overcharge your trolling motor battery for no reason.
Can you overcharge a 12 volt battery?
It is safe to charge discharged battery (less than 12.4V) at whatever voltage. Whatever device you use to charge it (12–25V) will not be able to raise the voltage if it doesn’t have enough output power (amps).
Is it better to charge a battery at 2 amps or 10 amps?
Slow charging using 10 amp chargers or less is generally accepted to be better. This is because repeatedly fast-charging a car battery may lead to overcharging and will severely reduce its performance. The short answer: 10 amp chargers are generally preferable than 2 amp chargers.
Is it better to charge a deep cycle battery slow or fast?
Which one is a better way to charge a deep cycle battery – slow or fast? Fast charging is always not recommended for most of the deep cycle batteries. You should always go with slow charging as it does not cause any side effects on the cells or plates of the battery.
Can you overcharge a deep cycle battery?
Both overcharging and undercharging will have serious adverse effects on the lifespan of a deep cycle battery. In particular, you can seriously shorten the lifespan of a battery if it is used in a deep cycle application that it was not designed for.
Can you charge a deep cycle battery with a trickle charger?
Use a smart charger to avoid overcharging. Is it OK to trickle charge a deep cycle battery? Trickle charging is the correct way to charge a deep cycle battery.
Why does my trolling motor battery die so fast?
If your prop shaft is fouled, it can drain your batteries faster than average. Many types of fishing line will float to the top of the water and can quickly become tangled around the prop shaft. … Also, the fishing line can cause resistance in the motor, increasing the amount of current your motor draws.
How long does a 12 volt battery last on a trolling motor?
6-8 hours seems reasonable with an older motor. Battery group size could play a role in life but on a 12v older power drive a 24 to 27 group battery running between 6-8 hours is in line with where you can expect yourself to be.
What size battery do I need for a 55 lb thrust trolling motor?
Most trolling motor batteries fail due to lack of proper charging. We suggest selecting a 12 volt deep cycle marine battery with at least a 110 amp hour rating, usually a group 27 size battery.
How fast can you charge a deep cycle battery?
Depending on the physical size, a “deep cycle’ battery may have 80+ “amp hours” (1 amp per hour at 80 hours) of storage capacity. So to charge a deep cycle battery at 2 amps from a “discharged state”, would take around a couple of days (48 hours).
What amp should I charge my deep cycle battery?
It is better to charge a deep cycle battery at a higher charge rate like 6-amps, 10-amps or higher. However, check you battery specifications for the proper charge rate.
Do I need a special charger for deep cycle battery?
Using a traditional battery charger to recharge your deep cycle battery will not give you the best possible results. … A deep cycle battery is not designed to handle the rapid charging and extra heat, so it may never reach full capacity.