Looking for Lithium battery brand recommendations. There are so many out there it is overwhelming. Contact online >>
Looking for Lithium battery brand recommendations. There are so many out there it is overwhelming.
After just a few trips with the new battery setup, we knew that 110Ah was simply not enough, and adding more AGM batteries was not an option due to the location of the batteries and how they impact the trailer’s tongue weight. The batteries were mounted near the trailer’s tongue: any weight added there would transfer to the vehicle. After many hours of research, the solution we chose to make the switch to as the latest and greatest in battery technology: Lithium Iron Phosphate (LiFePO4 / LFP). We picked the EnjoyBot 300Ah 12V LiFePO4 (12V-300Ah-PLUS / 971-HE-12V-300AH) battery.
Weight-To-Power Calculation:
As previously mentioned, we are using the EnjoyBot 300Ah 12V battery to power our 16-foot travel trailer that holds a large 12v refrigerator, lights, fans, water pump, and anything that may need power — except for the air conditioner that requires AC shore power. The EnjoyBot 300Ah can comfortably power all of those for about eight (8) days without any form of charging.
Check it out!Devos LightRanger is one of our favorite, full-coverage lights for camping, boondocking/overlanding, sports, and grilling with its built-in battery and 9′ telescoping pole.
Here is what we liked and disliked about the EnjoyBot 300Ah 12V LiFePO4 battery.
In addition to increasing the amount of available power capacity, the EnjoyBot has NOT negatively impacted our overall tow weight. Furthermore, it “enjoys” (pardon the pun) many advantages over AGM and other battery technologies.
LiFePO4 batteries have a high charge lifecycle of 5,000 after which they keep about 80% of their original capacity.
The drawbacks and shortcomings of the EnjoyBot 300Ah are not entirely specific to this particular product, but LiFePO4 in general.
This battery has a built-in, high-temperature charge protection, but does not have a low-temperature safety shutoff. EnjoyBot has released a model with both temperature shutoffs built in.
Most people think that Lithium-Ion batteries cost many times more than a traditional, lead-acid, deep cycle marine, or AGM battery. That is absolutely not the case.
For comparison, the two AGM batteries I had previously purchased cost $275 each (about $5 per usable Amp hour of power: $275 / (110Ah x 50%)). The EnjoyBot LiFePO4 costs $4.24 per usable amp hour ($1,079.99 / (300Ah x 85%), making it 15% cheaper than the AGM. Considering the other added values such as weight, charge efficiency, life span, and voltage stability, lithium is the clear winner for overall value.
The EnjoyBot 300Ah battery has a standard, charging current of 60A and a maximum, continuous charge current of 100A @ 14.2V – 14.6v. Because of the high charging current, we purchased the larger EnjoyBot 14.6V-20A LiFePO4 Charger (Amazon / EnjoyBot). It has a no-frills design but offers some notable features.
I did not like the charger’s carry handle as it protrudes and makes it more difficult to store. Storage space can be a premium with RVs and campervans.
Most battery monitors installed in RVs read the battery’s voltage and display its current state-of-charge based on the detected voltage. Different battery chemistries have different voltages at certain state-of-charges. So, it is important to note when upgrading to LiFePO4, that the state-of-charge readout could be inaccurate, if your current battery monitor is not programmed for or is incapable of reading lithium. If your current battery monitor is not designed to monitor lithium batteries, you may consider upgrading to one that does. Victron (BMV-712) and Renogy (500A) both make great lithium-compatible battery monitors.
The battery’s lifetime can be extended by keeping its charge level between 20% – 80% of capacity.
A battery like this one cannot be used to jump start a car. Instead, I suggest getting a small, portable one specifically made for that, such as one of our favorites: NOCO Genius Boost Car Jump Starter (Lithium Battery).
What size battery should you get? How long will it power your fridge for? How long will it take to recharge? The below calculations can help answer those questions and are rough ESTIMATES as conditions, battery quality, and age can vary.
How much energy a battery can store is measured in Wh (Watt-hours), and how much power is used or produced in W (Watts).
The EnjoyBot 12V-300AH LiFePO4 features some of the latest and greatest in battery technology. Its 3,840 Watt-hours of energy is a huge upgrade from our old AGM batteries and provides enough power to boondock off-the-grid for over a week — or even indefinitely when paired with solar panels. With the addition of an inverter, it can double as a power station and provide thousands of Watt-hours of clean, portable, and quiet power. The 3,840Wh capacity provides enough charge to power a 60W laptop for up to 54 hours (3,840Wh x 0.85 efficiency loss / 60W), a 40W CPAP for 81 hours, or a 110W Amazon Toshiba TV for 29 hours.
The only thing I did not like about the battery is the lack of a low-temperature shut off circuit for times I may be camping in the cold, snowy mountains where temperatures may dip below -4F. However, the company has recently released an upgraded version that includes that protection for an additional $100. Too late for me to return my model and get the newer version. Such is life, but great to see EnjoyBot address that cold-weather market segment.
Overall, the EnjoyBot is a huge upgrade from our previous setup. It provides more power for less money, performs better in just about every way, and has made towing more efficient and safer by reducing the amount of weight we have to tow.
Tip: We LOVE pairing a canopy tent with side panels (Clam or Axa) with the Outland Living Firebowl or Mr. Heater Buddy to retain heat during the winter; or to keep cool with the EcoFlow Wave Portable AC.
In July 2020, my friend, Michael Yuen, wrote about this topic after many asked what their differences were. In short, gas/propane generators can run virtually forever but are loud, dirty, and potentially quite dangerous. Battery power stations, on the other hand, are more portable, silent, less volatile, and can be operated indoor, but depend on external power (like solar) to recharge. Where gas/propane are used to GENERATE electricity, batteries STORE them for later use. Personally, he and I are fans of the latter because they are so easy to carry around and are safer to use.
Battery cells made by LG and Sony are among the best in the hobbyist world as are Sanyo/Panasonic and Samsung. Per a video embedded on EnjoyBot’s own website, their batteries consist of a large array of generic, 3.2V battery packs configured to 12v. These cells are not top tier ones like those I had just mentioned, but are still considered by many to be good batteries with decent build quality. During my friend, Michael Yuen’s, years of research, he had found that use of lower-quality batteries could pose a serious risk to life and property and should become a crucial part in deciding what to buy. Do keep in mind that LiFePO4 is by far safer and less volatile than other lithium-ion battery chemistries, such as NMC (Nickel Manganese Cobalt).
There are many types of Lithium-Ion batteries on the market today: Nickel Manganese Cobalt (NMC), Lithium Cobalt Oxide (LCO), Lithium Manganese Oxide (LiMn2O4), and Lithium-Ion Phosphate (LiFePO4) to name a few. Each uses different material and with distinct characteristics. The EnjoyBot uses LiFePO4 and is less volatile and inherently safer than the other types. When used in or near a living space like an RV, safety should always be a priority.
The second part in a battery’s safe operation depends heavily on the design, build material, and BMS (Battery Management System). Some BMS manufacturers, unfortunately, overstate their capabilities that could lead to catastrophic failure.
Per a video embedded on EnjoyBot’s website, the BMS used in the 300Ah battery reviewed here is a generic 200A with a high-temperature cut off. The BMS build quality is good but lacks a low-temperature cutoff typically found in higher end batteries. EnjoyBot did later release a newer model than mine that includes it.
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