|09-26-2021 12:47 PM|
|09-26-2021 10:48 AM|
A charger lead on each battery is ideal. However, with a combiner you can get by without a charger on every battery. For example if you have a charger connected to your trolling battery(s) the combiner will close when charging and charge your crank battery. Conversely, if you connect a charger on the crank battery, then a one bank charger will charge your trolling battery(s).
The big advantage of a combiner is the ability to charge your trolling battery on the water using the alternator on the main engine. This better assures your trolling batteries donít die on the water. Several years ago, I ran my rig daily for 10 consecutive days and later I learned my charger was fried by a lightning strike, and I didnít know it. The combiner provided sufficient charge to my trolling motor battery to keep it running every day without a shore charger. Not ideal, but that scenario demonstrates the impact of a combiner.
|09-26-2021 09:50 AM|
I have a combiner but also have a charger on every battery, including the starting battery. The combiner may not fully charge every battery beyond the starting battery depending on how long you run your big motor. I still like a charger on my starting battery because there is still parisitic drain on the battery mostly from the main motor ecm but there could also be other components with some parasitic drain too. Personally I want piece of mind that my starting battery is 100% charged when I start the day on the big water!!
|09-25-2021 05:49 PM|
|Walleye2487!||So will I not need a on board charger with with a combiner?|
|09-25-2021 08:58 AM|
|DW||This is the version for connection to a 24v battery bank: http://yandina.com/troll12X24info.htm|
|09-25-2021 07:44 AM|
|09-24-2021 09:06 PM|
|Walleye2487!||DW I have not come across what your talking about in amazon do you have a pic by chance you could show me?|
|09-24-2021 05:11 PM|
Same in concept but but probably inferior to the Yandina and other quality voltage sensitive relays on the market.
I looked it up on Amazon and the reviews are not good.
A lesson in semantics. Historically, isolators and combiners (or voltage sensitive relays) were electronically different and isolators were inferior. Today, the terms are sometimes used interchangeably.
They all serve the same function. However, isolators cause a significant voltage reduction to the receiving battery. Voltage reduction causes the receiving battery to chronically under charge affecting performance and battery longevity.
I wouldnít trust anything labeled isolator. In contrast a Yandina does not experience a voltage drop, has a large following in the boating biz and I have not read a bad review.
|09-24-2021 12:47 PM|
|Walleye2487!||DW is this what your talking about ?|
|09-24-2021 12:19 PM|
A combiner is wired inline between the positive terminals of the cranking battery and house and/or trolling batteries.
It is a voltage sensitive relay switch which automatically closes when the voltage reaches a prescribed voltage set by the manufacturer usually in the 13.3 to 13.6v range on either side of the relay. Thus, the relay does not close unless one battery is fully charged and charging. Typically, a charge is applied to the crank battery by the alternator. The crank battery is usually fully charged, and current flows into the second battery bank as needed and to the extent the alternator generates power. The crank battery cannot discharge through the combiner so you donít lose starting capability.
Similarly if a charge is applied to your second battery bank, when that battery bank is fully charged the relay closes and charges the cranking battery. In your case that would allow charging the crank battery without buying another charger.
Combiners dont screw up. Humans operating manual switches can make mistakes. Besides being mistake proof, a combiner assures that any battery that needs charging receives a charge if the alternator or charger has the juice to deliver.
I have a combiner from Yandina.com. They are available for connection to 12, 24 and 36v house/trolling battery banks.
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