In the event that you're finally making the switch in order to LiFePO4, finding the particular right rv converter charger for lithium batteries is the most important step you'll take to protect that investment. It's one of those things where you might think, "Hey, a charger is usually a charger, best? " but that logic can in fact finish up costing you of money in the long run. Lithium batteries are amazing—they're lighter, these people keep going longer, and they will don't slump whenever you're managing a heavy load—but they may be a bit "picky" about how exactly they receive their particular power.
Nearly all older RVs originated from the factory along with converters designed for lead-acid or AGM batteries. Those old-school chargers work on a very specific set of voltage guidelines that just don't match up using what lithium needs. In case you try to make use of your stock converter, you'll likely discover that your expensive new batteries in no way actually reach a 100% state associated with charge, and they might even suffer from a shortened life expectancy because they by no means get the "balancing" they need.
Exactly why your old lead-acid charger is keeping you back
To comprehend why you need a devoted rv converter charger for lithium batteries , you have to look at just how lead-acid batteries behave. They're basically the particular moody teenagers associated with the battery planet. They need the slow, tapering cost, and they have got a high internal resistance. Because of this, standard RV converters are designed to start along with a "bulk" charge at a high ac electricity, but then they quickly drop down to some "float" ac electricity of around 13. 2V to 13. 6V to prevent boiling the electrolyte out of the lead plates.
Lithium batteries, specifically Lithium Iron Phosphate (LiFePO4), have a very flat discharge curve. They desire to drink up as much current because the charger can supply until they are almost completely complete. To get all of them the way in order to 100%, they usually need a constant volts of about fourteen. 4V to fourteen. 6V. If your old converter falls to a float stage of thirteen. 2V, it will certainly simply stop charging the lithium battery pack once it hits about 70% or 80% capacity. You're essentially paying for a 100Ah battery power but only getting able to make use of 75Ah of this. That's a great deal of missed boondocking time.
The significance of the "Lithium Profile"
When people discuss a "lithium profile" in a converter, they're speaking about a basic charging logic. In contrast to lead-acid, which needs three or 4 different stages to stay healthy, lithium is much simpler. A good rv converter charger for lithium batteries will typically hold a steady 14. 4V or 14. 6V until the Battery power Management System (BMS) inside the battery pack tells it in order to stop.
This constant hollywood isn't just about acceleration; it's about cell balancing. Inside your own lithium battery container, there are several individual cellular material. With time, these cells could get slightly out of sync—one might be at 3. 6V while one more is at 3. 4V. The BMS needs that higher voltage at the particular end of the particular charge cycle in order to shunt energy close to create sure each cell is properly balanced. Without the lithium-specific charger, that balancing act usually never happens, which can lead to one cell screwing up prematurely and taking the whole electric battery down from it.
Choosing the correct amperage for your setup
One particular of the best things about lithium is how quick it could charge. While a lead-acid battery pack shouldn't really be charged at more than 20% from the capacity, lithium could handle 50% as well as 100% of the capacity in charging current (though check your battery's spec sheet first).
If you have a 200Ah lithium bank, you could theoretically how to use 80-amp or 100-amp rv converter charger for lithium batteries . However, you have to be careful regarding the wiring inside your RV. If your own rig was constructed with a 35-amp converter, the wires running in the converter to the electric battery are likely size for 35 amps. If you just exchange within a 100-amp charger without upgrading the particular wires, you're going to possess an open fire hazard in your fingers.
Most people find that a 55-amp or 60-amp unit is the "sweet spot" for a typical dual-battery set up. It's fast plenty of to get you regress to something easier and operating following a night of dry camping, but usually doesn't require you to rewire the entire DC side of your coach.
Deck mount compared to. replacement main planks
When a person go to purchase your new rv converter charger for lithium batteries , you'll notice two major styles. You can find "deck mount" units, which are stand-alone containers that plug straight into an AC wall plug and have 2 lugs for your battery wires. Then there are "replacement sections" or "lower units" intended to be slid straight into your existing power center (the panel where your breakers and combines are).
If your current converter is tucked inside the bottom of your fuse panel, purchasing a replacement section is usually the particular cleanest way to go. It will keep everything looking stock and doesn't get up extra space for storage. However, if your converter is located in a hard-to-reach spot or a person wish to move it closer to the batteries to reduce voltage fall, a deck-mount unit is an excellent choice.
Speaking of voltage drop, it's a big offer. If your charger is definitely 20 feet aside from your batteries, the resistance in the wire might cause the battery in order to "see" 14. 0V even though the particular charger is putting out 14. 6V. In this situation, the battery won't get fully billed. This is exactly why many people decide to mount their new lithium converter as close to the battery bank because possible.
Is it a "Drop-In" substitute?
Most manufacturers market these since drop-in replacements, and for the most part, they are. If you're reasonably handy using an electric screwdriver and a voltmeter, you can exchange one out within about 30 moments. You just need to make sure the power is off—both the AC shoreline power and the DC battery disconnect.
One thing to look out for is whether the new rv converter charger for lithium batteries includes a physical change or even a "smart" realizing technology. Some contemporary converters claim they will can automatically identify if you have lithium or lead-acid. While that seems great, sometimes they fail. I individually prefer the models with a bodily jumper or the switch that allows me manually locking mechanism it into "Lithium Mode. " That will way, I understand for a truth it's pushing the particular voltage I want.
The cost of the upgrade
Let's be genuine: a great converter charger isn't exactly inexpensive. You're looking from anywhere from $150 to $300 depending on the brand and the amperage. When you've already spent $800 on a lithium battery pack, another $200 for a charger feels like a gut punch.
But consider it a good insurance policy. In case you use a cheap or incorrect charger, you are significantly shortening the 10-year lifespan of that will battery. In case you destroy a lithium electric battery in 3 years mainly because it was in no way balanced or stayed chronically undercharged, you've lost way even more money than the particular cost of a proper converter. Plus, the peace of thoughts knowing your batteries will really be full when you disconnect from the base may be worth a great deal when you're headed into the center of nowhere.
Final thoughts on the transition
Switching for an rv converter charger for lithium batteries is the final piece of the particular puzzle for a modern RV energy system. It links the gap between the old method of camping and the new, high-efficiency globe of solar and lithium.
Once you have the right charger in place, you'll notice that your own lights don't sparkle when the push kicks on, your own heater runs stronger through the night, and your own recharge times are cut in half. It's a behind-the-scenes update that doesn't look fancy, however it totally changes the way you encounter off-grid life. Don't let your older lead-acid charger choke the potential of your batteries—give all of them the strength they're actually asking for.