Best 200Ah Lithium Battery UK (12V, LiFePO4)

At Off Grid Power Geek, we’ve watched the Lithium battery market with interest for a while now.

Why?

Because Lithium (LiFEPO4) batteries offer a ton more power, longevity and ability to handle deep discharge than Lead-acid batteries.

The new LiFePO4 batteries even solve the safety issues that plagued earlier incarnations of the Lithium battery. In fact, the evidence suggests they’re now even safer than Lead-acid batteries.

The problem was always just the price.

But since in the last year or so, price has come down a lot. So much so that it’s now significantly cheaper in the long run to buy a Lithium battery, even if the initial investment is more expensive.

So we’ve checked out and reviewed the best 200Ah Lithium batteries in the UK. Here’s what we found.

Best 200Ah Lithium Battery UK

Introducing Best 200Ah Lithium Battery UK (12V, LiFePO4)

Here are the criteria we used for our reviews, and how we picked the best 200Ah Lithium batteries on the UK market.

  • Build quality
  • Material used and manufacturing quality
  • Cyclic durability
  • Ability to handle deep discharge
  • Power retention when voltage drops down low
  • BMS quality
  • Safety/protective functions

The 2 batteries on this list are, as things stand, the only 2 that met all these criteria, and therefore the only ones we recommend.

Litime 200Ah Lithium Battery 12V

Renogy 200Ah Lithium Battery 12V (w/ Bluetooth)

Kepworth 100Ah Lithium Battery 12V (x2)

RANKING
BATTERY (12V)Litime 200Ah LiFePO4 batteryRenogy 200Ah Lithium BatteryKepworth 2 x 100Ah Lithium Battery
WEIGHT19.95kg (44.0lb)27.3kg (60.2lb)9.3kg (20.5lb) each
LIFE CYCLESUp to 15000 (at 60% DoD)2000 (at 80% DoD)Up to 7000
DIMENSIONS53.2 x 20.7 x 21.5 cm (20.9 * 8.1 * 8.5inches)52.2 x 24.0 x 21.9 cm (20.6 x 9.5 x 8.6 in)35.2 x 17.4 x 19 cm each
WATERPROOFYes (to IP65)Yes (to IP65)No (but water resistant to IP55)

200AH Lithium Battery Reviews UK

We reviewed both these batteries for all the criteria mentioned above. Check out our findings below.

Litime 200Ah Lithium Battery 12V

This is the best LiFePO4 200Ah 12V battery.

Here are our likes and dislikes in our testing.

What We Liked
  • Outstanding for sustained power delivery. In our tests we found it to have the best ability to power high-consuming devices for longer than any other LiFePO4 battery.
  • Up to 15k cycles, at least according to Litime. After seeing how good the power delivery is, over a long time, we reckon it’s possible.
  • Less than 20kg in weight, 19.95kg to be precise. That’s more than 7kg less than the Renogy 200Ah Lithium battery, which is itself very light compared to any lead-acid battery of this size. That’s phenomenally light.
  • Water resistant to IP65 level. That’s impressive; it adds to the feeling we have that the Litime 200Ah LiFePO4 battery will have excellent longevity.
What We Didn’t Like
  • Unlike Renogy in No.2 spot, it doesn’t come with Bluetooth functionality.
  • Litime are a brand with good reputation for quality in the industry, but they can’t quite match Renogy’s reputation for manufacturing and quality expertise.

Specifications:

  • Weight: 19.95kg (44.0lb)
  • Dimensions: 53.2 x 20.7 x 21.5 cm (20.9 * 8.1 * 8.5inches)
  • Rated Capacity: 200Ah
  • Maximum Continuous Charging Current: 100A (for 1 hour)
  • Maximum Continuous Discharging Current: 100A (for 1 hour)
  • Peak Discharge Current: 280A (for 5s)
  • Nominal Voltage: 12.8V
  • Storage Temperature: -10℃ to +50℃
  • Charging Temperature: 0℃ to +50℃
  • Discharging Temperature: -20℃ to +60℃
  • Life cycles: Up to 15,000 (at 60% DoD)

Verdict: It matches Renogy in almost all key aspects of quality of the materials and Lithium cells, and it’s cheaper. The key advantage is the superb sustained power delivery. If you need Bluetooth though, or you’re particularly keen on the Renogy brand, go for Renogy. This was a close one.

Here’s the best place to buy it, on Amazon.

Renogy 200Ah Lithium Battery 12V (w/ Bluetooth)

This is the second best 200Ah LiFePO4 battery in the UK.

Here are our likes and dislikes in our testing.

What We Liked
  • The best BMS on the market. The performance and safety of a Lithium (LiFePO4) is significantly related to its BMS quality.
  • In our experience, Renogy’s BMS allows for the most flawless hookups and connections with solar panels and with other batteries (in parallel). That’s because of the BMS quality, particularly their cell balancing BMS function.
  • Renogy are a good and well-reputed manufacturer in the battery industry. Their production and materials quality are high calibre.
  • Renogy are really good for customer service and dealing with any issues with their batteries; advising solutions and refunding / replacing where necessary
  • Proven sales success and strong customer reviews show that this battery is reliable
  • This battery can handle both very low, and very high temperatures (outperforming the Kepworth battery in this regard).
  • Handles being around dust, dirt, water and other materials very well, since it has IP65 level protection. It’s waterproof, able to handle water jets from any direction.
  • Bluetooth connection is handy, and the App is surprisingly good in the sense of being easy to use. Makes it simple to keep track of the charging process.
What We Didn’t Like
  • You can’t connect several of these together in series. If that’s what you need a Lithium battery for, this one isn’t for you. You can connect up to 8 of them in parallel. The Kepworth 200Ah battery allows 5 to be connected in series.
  • Though it’s very lightweight, the Kepworth battery is even lighter.
  • You have to be close to the battery to check it using the App, normal Bluetooth range. Wifi connection would have been better, so you can check it from anywhere.
  • Price is still good value, but Kepworth is much lower cost

Specifications:

  • Weight: 27.3kg (60.2lb)
  • Dimensions: 52.2 x 24.0 x 21.9 cm (20.6 x 9.5 x 8.6 in)
  • Rated Capacity: 200Ah
  • Maximum Continuous Charging Current: 100A
  • Maximum Continuous Discharging Current: 100A
  • Nominal Voltage: 12.8V
  • Storage Temperature: -25℃ to +65℃
  • Life Cycles (at 80% DoD, 0.5C, 25℃): 2000 cycle
  • Self-discharge rate: 3% per month

Verdict: The most feature-packed and advanced LiFePO4 battery on the market. Very reliable and with excellent after-care by Renogy. It’s our No.2 only because the Kepworth 200Ah Lithium battery has some similar qualities (if less advanced features) at a lower price.

The best place to buy it, on Amazon, is here.

Kepworth 100Ah Lithium Battery 12V x 2 (connected in parallel)

This is the third best LiFePO4 200Ah 12V battery option.

Here are our likes and dislikes in our testing.

What We Liked
  • Modern and high-quality BMS both delivers the power as advertised and has all the required safety functions you need (like short circuit protection, over-charge and over-discharge.)
  • Ultra lightweight, you’ll reap the benefits of the weight-saving compared to Lead-acid batteries.
  • Handles high discharge very well, even 90% discharge does not damage the battery. And maintains a high voltage until charge is very low (unlike Lead-acid batteries that drop sharply in voltage).
  • 5 of these batteries can be connected in series; that’s unlike Renogy, which do not allow for any connection in series.
  • Easily the best value in the market – good quality at much lower price than Renogy
What We Didn’t Like
  • Reputation for after-care and service is not as strong as Renogy
  • Not fully waterproof like the Litime or Renogy 200Ah batteries (but is water resistant to IP55).

Specifications:

  • Weight: 9.3kg (20.5lb)
  • Dimensions: 35.2 x 17.4 x 19 cm
  • Rated Capacity: 100Ah
  • Maximum Continuous Charging Current: 70A (for 1 hour)
  • Peak Discharge Current: 200A (instantaneous)
  • Nominal Voltage: 12.8V
  • Storage Temperature: -20℃ to +45℃
  • Charging Temperature: 0℃ to +50℃
  • Discharging Temperature: -20℃ to +60℃
  • Life cycles: Up to 7000

Verdict: Why is it our No.3? Both the Litime 200Ah Lithium battery and the Renogy 200Ah battery has several superior aspects (like great sustained power delivery, Bluetooth {Renogy only} and being more waterproof), if you don’t need those, then a couple of these Kepworth battery is similarly high performing and reliable. Most crucially, it’s got a similarly high-quality BMS, and is quite a bit cheaper than the Litime and Renogy batteries, but you need to connect them in parallel.

Here’s the best place to buy it, on Amazon.

Why get a Lithium battery?

Let’s take an example.

Let’s compare a 200Ah Lithium battery with THREE Lead-acid 100Ah batteries.

Unfair fight, right? 300Ah of Lead-acid batteries against only 200Ah Lithium battery.

Well yes, but not in the way you might think…

BatteryUsable CapacityWeightCostLifespan
200Ah Lithium (LiFePO4) Battery180-190Ah22-25kgAround £650-100010-15 years
3 x 100Ah Lead-acid batteries150Ah80-90kgAround £400-8003-5 years

Let’s discuss the results of this table.

Usable Capacity

As you may have noticed, the total listed capacity of the lead-acid batteries is 300Ah.

However, it’s advised to only discharge lead-acid batteries to 50%, meaning the usable capacity is only 150Ah.

Even if you discharged the 3 lead-acid batteries to 70%, the maximum usable capacity would be 210Ah. That’s just slightly more than can be provided by the 200Ah Lithium battery alone.

And regularly discharging to 70% DoD harms lead-acid batteries, and they may only last 2 or 3 years.

Cost and Lifespan

As you can see, it’s still a larger initial investment to get the Lithium battery (though they’re now not that much more than AGM batteries). But Lithium batteries are incredibly long-lasting and with far superior cyclic durability than Lead-acid batteries.

What does that mean?

Well, in the time that the Lithium battery lasts, you’d probably have had to replace each Lead-acid battery 3 or 4 times. Which means the lead-acid battery purchase is costing a lot more.

Superior cyclic durability, meanwhile means that the Lithium battery will stay stronger, giving more power for longer. They don’t fade in the way that Lead-acid batteries do.

Won’t it be nice to relax, knowing your Lithium battery is likely to last a decade? (or even a decade and a half?!)

Weight

The weight saving of a Lithium battery compared to a Lead-acid battery is simply enormous.

Even though the Lithium battery delivers fully 30Ah more usable capacity than the Lead-acid battery bank, it weighs fully 60-70kg less!

If the Lithium battery is for your motorhome, campervan, or caravan, that large a weight saving can, over time, save money on petrol.

Are Lithium (LiFePO4) batteries safe?

Yes. In 2022, we can say that LiFePO4 batteries are very safe unequivocally.

That’s due to the advent of LiFePO4, a special type of Lithium that is used by all modern Lithium batteries.

As well as, and most importantly, the sophisticated BMSs.

What is a BMS?

A BMS is a Battery Management System.

It provides:

  • over charge protection
  • over temperature protection
  • over-discharge protection
  • over current protection

They offer protection from pretty much every possible thing that can go wrong with a battery.

This type of electronic circuit provides a level of safety that is beyond what Lead-acid batteries can provide.

Is a 24V battery worth considering?

If so, check out the UK’s leading 200Ah 24V Lithium batteries. Or for a smaller size, how about 100Ah 24V batteries.

A Summary of Best 200Ah Lithium Battery UK

Those are our findings on the 200Ah Lithium battery market in the UK.

Price is lower than ever, and finally works out cheaper long-term than Lead-acid batteries, since they last far longer. That’s what plenty of people have been waiting for for a while, particularly for leisure and solar battery users.

The Renogy 200Ah Lithium battery is comfortably the best on the market, offering the most reliable battery, the best build and material quality, as well as good service, should anything go wrong.

The Kepworth model is good quality at a lower price, but it’s not quite as well made as the Renogy one, and after-care isn’t up to the same level.

Hopefully, you now have a better idea about your decision, good luck!

lithium leisure battery 200ah

If it’s for you, here’s where to get the Litime battery on Amazon.

And the Renogy model, is here.

Here’s where to see the Kepworth model, on Amazon.