So you are wondering whether that exspensive upgrade to lithium batteries in your RV is worth the cost

Simply, for most RVers it is worth the cost to upgrade to lithium batteries anytime you have some or all of the following conditions:

• Need to already replace the battery bank
• Plan on keeping the RV over 2 years
• Concerned with the weight of your RV
• Need more duration and run time from your battery bank
• Have a damaged or faulty battery

Here is what to know about the cost of lithium RV batteries

They ain’t cheap! With that being said neither is anything else these days. I have found that the cost per amp hour on lithiums continually get better ever year. When we first started recommending lithium batteries abiout seven years ago, a 100 Ah batter was over five thousand dollars if you could get one. Yes if you could get one. I always teased that there was lithium battery mafia controlling access to batteries. Well those days have passed and there are numerous offerings for quality lithium batteries. Learn more about How long do lithium RV batteries last

Lets talk cost comparison of AGM to LIFE-PO4 (Lithium Battery)

We will skip the deep cycle marine batteries that require venting for this comparision and focus on batteries that are typically safe for indoor use.

AGM RV Battery

A 100 amp hour AGM battery will cost between $300 and $400 delivered to your location. It will have a warranty life of 2 years.

I will use the average cost of $350 for a battery for this calculation. Don’t worry I will do the same for the lithium battery.

• $350 / ( 2 Years) (100 Amp Hours) = $1.75 per amp hour warranty year

Lithium RV Battery

A 100 amp hour LITHIUM battery will cost between $900 and $1200 delivered to your location. These batteries often have a 10 year warranty.

I will use the average cost of $1100 for a battery for this calculation. (Maybe a little high)

• $1050 / (10 Years) (100 Amp Hours) = $1.05 per amp hour warranty year

At $1.05 per amp warranty year, I think lithiums have become a better finacial choice. More money out of pocket now will most likely save a bunch of money later. Not to mention all of the other features you get from lighter more powerful lithium batteries.

Conclusion

After looking at lithium batteries for RVs, I would say that it is worth it when upgrading batteries to go with lithium batteries. There are always exceptions, but as lithium battery prices continue to fall, they will become more affordable and an even better choice. Lithium batteries have come down a lot in price over the last ten years. When we first started selling these batteries, they were hard to come. A single 100 Ah battery would cost over $5000 at that time. Today they are much lower cost with a greater power denisity.

Large 250 Amp hour lithium battery

Large RV 250 Ah lithium battery that is designed to operate at 12 volts