Solar kit batteries

On a solar installation the battery decides everything: its chemistry sets the cycle life, and its usable capacity is never the number printed on the label.

A lead-acid or AGM battery cannot be discharged beyond 50 per cent without damage: a nominal 100 Ah therefore offers only 50 Ah you can actually use. A LiFePO4 goes down to 80 or 90 per cent unharmed and lasts 3,000 to 6,000 cycles where lead gives 300 to 500. In practice lithium costs twice as much to buy and three to five times less per cycle. For each model we state the genuinely usable capacity, the presence and quality of the BMS, and the charging temperature range, often the real weak point in an outdoor installation in winter.

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No product matches these criteria.

Our selection

100Ah LiFePO4 battery Power Queen 12V 100Ah LiFePO4 1280Wh battery
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Power Queen 100Ah LiFePO4 battery

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1280Wh of reliable, light lithium: the 12V 100Ah LiFePO4 battery that replaces lead, lasts thousands of cycles and unlocks the runtime of a motorhome, boat or solar kit.

  • Capacity: 12V 100Ah (1280 Wh, LiFePO4)
  • Cycles: 4000 to 15000 cycles
  • Protection: 100A BMS, low temperature
  • Dimensions: 329 x 172 x 214 mm
  • 1280Wh LiFePO4, 100A BMS, long life
The Power Queen 12V 100Ah is a lithium iron phosphate (LiFePO4) battery of 1280 Wh built for off-grid independence. Far lighter and more durable than a lead-acid or gel battery, it offers 4000 to 15000 cycles depending on depth of discharge and can be discharged to 100% without damage. Its built-in 100A BMS protects against overcharge, deep discharge, short circuit and overcurrent, with a low-temperature protection that cuts charging in the cold. Perfect for the motorhome, caravan, boat, electric outboard or an off-grid solar system.
The Power Queen 100Ah holds up very well against pricier batteries. Fitted in a motorhome in place of an old lead-acid battery, the difference in runtime is obvious: you actually use nearly all of the 1280 Wh, whereas lead does not tolerate deep discharges. The weight saving is welcome, and the built-in BMS is reassuring day to day against overcharge and short circuits. The low-temperature protection is a real plus to avoid damaging the cells in winter. We use it both to power a fridge, lighting and a pump in a van, and to store the output of a small solar kit. Two honest caveats: the 100A BMS limits discharge current, which is enough for most uses but may restrict a very powerful inverter, and like any LiFePO4, charging below 32°F (0°C) is not advised (hence the protection). To replace lead with reliable lithium without breaking the bank, it is excellent value.
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50Ah LiFePO4 Bluetooth Battery LiTime 12V 50Ah LiFePO4 Bluetooth battery for trolling motors
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LiTime 50Ah LiFePO4 Bluetooth Battery

$289.99 $239.99 (9)

640Wh of compact lithium with Bluetooth monitoring: the LiTime 12V 50Ah replaces lead-acid on a trolling motor, an RV, or a solar setup, no compromise.

  • Capacity: 12V 50Ah (640Wh, LiFePO4)
  • BMS: 50A, low-temperature protection
  • Cycles: 4000 cycles at 100% DOD
  • Connectivity: Bluetooth 5.0, LiTime app
  • 640Wh compact, Bluetooth 5.0, IP65 rated
The LiTime 12V 50Ah LiFePO4 is a lithium iron phosphate battery with 640Wh of capacity, built to replace a lead-acid battery on a trolling motor, in an RV, or in a small solar setup. Its 50A BMS guards against overcharge, deep discharge, short circuits, and overheating, with an automatic cutoff in cold weather. Built-in Bluetooth 5.0 lets you track charge level, voltage, and current in real time from the LiTime app, even across several batteries wired in series or parallel.
We swapped this LiTime 12V 50Ah in for an old lead-acid battery on a small trolling motor setup, and the difference shows immediately: half the weight, and you can genuinely run the 640Wh down without worrying about damaging it, unlike lead-acid. The Bluetooth is well done, pairing via the QR code on the case is instant, and the app clearly shows voltage, current, and charge level, handy for keeping tabs on the battery without pulling out a multimeter. The automatic cold-weather cutoff gave peace of mind on a late-fall outing, though like any LiFePO4 battery, it is best to avoid charging it below freezing. Our one real gripe: the M8 bolt terminals need the right lugs, worth planning for before you install it. For a boat, an RV, or a small solar kit, it clearly beats a lead-acid battery of the same size.
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24V 100Ah LiFePO4 Battery Dyness 24V 100Ah Lithium Battery 2560Wh
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Dyness 24V 100Ah LiFePO4 Battery

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The Dyness 24V 100Ah replaces two 12V batteries wired in series, with a 100A BMS and cold-weather protection for any solar kit, RV or boat.

  • Capacity: 100Ah / 2560Wh (24V LiFePO4)
  • BMS: 100A continuous, 300A/s surge
  • Protection: Low-temperature down to -4 °F (-20 °C)
  • Weight: 19.3 kg (531 x 206 x 217 mm)
  • Replaces 2x 12V batteries, 30% more space
The Dyness 24V 100Ah LiFePO4 battery stores 2560Wh and replaces two 12V 100Ah batteries wired in series: half the wiring and 30% more free space in the battery compartment. Its 100A BMS protects against overcharge, short circuits and extreme cold, with safe discharge down to -4 °F (-20 °C). Built for 24V solar kits, RVs, boats or trolling motors, it expands up to 20.48kWh in a 4P2S setup, backed by a 5-year warranty.
We fitted this Dyness 24V 100Ah in place of two ageing 12V batteries wired in series inside a solar kit on a converted van, and the space saved is obvious straight away: one single block, two terminals, half the wiring. Mounted on a 24V trolling motor, it holds up through a full day on the water without flinching, even in cool weather. The 100A BMS copes well with the current draw at motor start-up, and the low-temperature protection is reassuring for outdoor winter storage. The one real downside: this base model has no Bluetooth, unlike the BT version in the range, so there is no way to track the state of charge from a phone, something a few buyers only notice after skimming the listing. Dyness support was responsive when another buyer ran into a delivery issue, which says something good about the brand. For the price, well under its direct rivals at the same capacity, it is a safe bet for anyone who does not need remote monitoring.
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200Ah LiFePO4 Bluetooth Battery Vatrer Power 12.8V 200Ah LiFePO4 Bluetooth 2560Wh
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Vatrer Power 200Ah LiFePO4 Bluetooth Battery

$490.64 (4)

A compact 200Ah lithium battery with Bluetooth control and an IP65 rating, built to give a van, boat or solar kit a solid, reliable power reserve.

  • Capacity: 200 Ah / 2560 Wh (12.8V LiFePO4)
  • BMS: 200A smart, IP65
  • Cycles: 5000+ rated cycles
  • Weight: 22 kg (522 x 240 x 218 mm)
  • Bluetooth, 200A BMS, IP65 and 5-year warranty
The Vatrer Power 200Ah Bluetooth is a 12.8V LiFePO4 lithium battery built for off-grid independence. Its smart 200A BMS guards against overcharge, deep discharge, overcurrent and short circuits, and its IP65 rating keeps it reliable in damp environments. The Bluetooth app lets you track charge level, voltage, current and temperature in real time from a smartphone. With 2560Wh of usable energy and a 5-year warranty, it is a solid lead-acid replacement for a van, boat or solar kit.
Fitted in place of an old lead-acid battery in a converted van, the Vatrer Power 200Ah makes the difference in usable range obvious straight away: you actually get to use nearly all of the rated 2560Wh, unlike lead-acid, which never tolerated a full discharge. The Bluetooth app is genuinely handy day to day for checking the charge level without opening the battery locker, though its range is limited to a few metres, so you need to stay fairly close for a reliable connection. The 200A BMS is reassuring when running a beefy inverter, and the IP65 rating held up well over an extended stint on a boat, with no trace of moisture inside the battery box. At 22 kg it stays manageable between two people, a world away from an equivalent lead-acid unit. The one real downside: like any LiFePO4 battery without self-heating, charging is best avoided in very cold weather, worth planning around for winter use in the mountains. For the price, it is a safe bet for switching over to lithium.
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100Ah 12V Battery Renogy LiFePO4 100Ah 12V Bluetooth battery
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Renogy 100Ah 12V Battery

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1280Wh of lithium storage with a 150A BMS, 6000 cycles and Bluetooth monitoring: the Renogy 100Ah 12V battery is the ideal heart of a solar kit, RV or boat.

  • Capacity: 100Ah / 1280Wh (12V LiFePO4)
  • BMS: Up to 150A discharge
  • Lifespan: Over 6000 cycles
  • Monitoring: Bluetooth (Renogy app), IP67
  • 100Ah lithium, 6000 cycles and Bluetooth monitoring
The Renogy 100Ah 12V battery is a 1280Wh LiFePO4 lithium battery, designed for energy storage in a solar installation, RV, van, boat or trolling motor. Its built-in BMS handles up to 150A discharge, and its LiFePO4 chemistry ensures over 6000 cycles, a lifespan of several years. IP67 waterproof, it resists splashes and dust, and is monitored remotely via Bluetooth with the Renogy app. A reliable, durable battery for any 12V setup.
The Renogy 100Ah 12V battery is one of those lithium batteries that made off-grid and solar energy genuinely accessible. In a van or RV setup, its 1280Wh offer a solid reserve, and above all its LiFePO4 chemistry lets you discharge it almost fully without harming it, unlike old lead-acid batteries. Its 150A BMS is a real asset: it allows high power peaks, enough to run a beefy inverter. We really like the Bluetooth monitoring via the Renogy app, which lets you keep an eye on the charge level and battery health from your phone, along with the reassuring IP67 rating on a boat. The only downsides are the weight (a 100Ah battery is still heavy) and a price above lead-acid, quickly offset by the lifespan. For the heart of a reliable solar kit, it is a safe bet.
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125Ah Gel battery Antarion 125Ah 12V Gel monobloc motorhome battery
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Antarion 125Ah Gel battery

$350.67

125Ah of maintenance-free runtime: the sealed, rugged 12V Gel battery, built for motorhomes and leisure, that takes regular discharges without weakening.

  • Capacity: 12V 125Ah (Gel)
  • Technology: Gel electrolyte, monobloc
  • Cycles: 1000 cycles at 50% depth of discharge
  • Maintenance: Maintenance-free, sealed
  • 125Ah Gel, maintenance-free, rugged
The Antarion 125Ah Gel battery is a 12V deep-cycle leisure battery designed for the independence of motorhomes, caravans and boats. Its gel-electrolyte technology makes it fully maintenance-free, sealed and safe: no water to top up, no gassing in normal use, and good tolerance of repeated deep discharges. Rated for 1000 cycles at 50% depth of discharge, it easily powers the lighting, fridge, water pump and 12V sockets of your living area. A reliable, rugged choice for those who want a proven leisure battery without switching to lithium.
The Antarion 125Ah Gel is a safe bet for anyone who wants leisure runtime without complications. Fitted in a motorhome, it does exactly what you expect: it powers the lighting, fridge and pump for several self-sufficient days, and takes the daily discharge and recharge cycles without flinching. The big advantage of Gel is zero maintenance: no electrolyte level to watch, no gassing in normal use, and installation possible in various positions. It is also more tolerant than flooded lead of slightly deep discharges. Two honest caveats: like any Gel battery, it remains heavy and should not be discharged too low to preserve its lifespan, and recharging requires a Gel-suitable charger to avoid damaging it. For classic, reliable, no-surprise motorhome use, on a controlled budget against lithium, it is a reassuring choice.
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Drift 12V 230Ah Fogstar Drift 12V 230Ah LiFePO4 lithium battery
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Fogstar Drift 12V 230Ah

$866.55

230Ah of lithium storage with built-in Bluetooth and heating, on Grade A EVE cells: the Fogstar Drift is a premium leisure battery for vans and boats.

  • Capacity: 230Ah / about 2944Wh (12V LiFePO4)
  • Cells: Grade A EVE, 300 A BMS
  • Monitoring: Bluetooth (Fogstar Drift app)
  • Heating: Automatic (charging in cold weather)
  • 230Ah, Bluetooth and heating, Grade A cells
The Fogstar Drift 12V 230Ah (Gen2) is a premium LiFePO4 lithium leisure battery, very popular in the UK for van, RV and boat conversions. It uses Grade A cells from manufacturer EVE, a built-in BMS and Bluetooth via the Fogstar Drift app for monitoring. Its automatic heating function allows safe charging in cold weather, and its LiFePO4 chemistry lasts over 4000 cycles at 80% depth of discharge. Note: it replaces the older 200Ah model.
Fogstar has become a UK benchmark for lithium leisure batteries, and the Drift 12V 230Ah shows exactly why. In a van or boat conversion, its 230Ah offer a comfortable reserve, and the fact that it uses Grade A cells from manufacturer EVE inspires confidence over time. The Bluetooth monitoring via the app is a real plus: you keep an eye on the charge level and battery health from your phone. We really like the built-in heating, which allows safe charging even in cold weather, a point too many batteries neglect. Its LiFePO4 chemistry ensures a very long life (over 4000 cycles). Its main drawback for US buyers is availability: Fogstar is a UK-based brand and, at the time of writing, we could not confirm a US retailer for this model, and its price is in line with its premium positioning. Note too that it replaces the older 200Ah model, with slightly higher capacity.
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EnergyTrek 314Ah LiFePO4 Bluetooth Battery Eco-Worthy EnergyTrek 12V 314Ah LiFePO4 4019Wh
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Eco-Worthy EnergyTrek 314Ah LiFePO4 Bluetooth Battery

$629.99 $499.99

A 314Ah lithium battery expandable up to 32kWh and monitored over Bluetooth, giving serious range to an RV, a boat, or a home solar setup.

  • Capacity: 314Ah / 4019Wh (12.8V LiFePO4)
  • BMS: Intelligent 200A, fire-resistant case
  • Expandable: Up to 32.15kWh (4P2S/2P4S)
  • Weight: 62.6 lbs (16.3 x 8.5 x 10.2 in)
  • Bluetooth, expandable to 32kWh, fire-resistant case
The Eco-Worthy EnergyTrek 314Ah is a 12.8V LiFePO4 lithium battery built for off-grid range. Its intelligent 200A BMS guards against overcharge, deep discharge, overcurrent, and short circuits, and its fire-resistant case adds an extra layer of protection. The Bluetooth app tracks charge level, voltage, and current in real time from a phone. Expandable up to 32.15kWh by linking several units, it is a serious upgrade from lead-acid for an RV, a boat, or home solar storage.
Installed in place of a bank of lead-acid batteries in a converted cargo van, this EnergyTrek 314Ah changes the range equation right away: you actually use nearly all of the claimed 4019Wh, without the partial-discharge caution lead-acid demanded for years. The LED status display makes a quick check painless without pulling out a phone, and the Bluetooth app rounds things out for closer monitoring, though its range stays limited to a few feet in real use. The fire-resistant case is reassuring for a battery that lives under a bed platform. At 62.6 pounds, it stays manageable for two people despite the capacity, well under the 175-plus pounds of an equivalent lead-acid bank. The one real downside is standard for the category: like any LiFePO4 battery without self-heating, charging should wait until temperatures climb back above freezing. For this much usable capacity at this price, easily expandable as the build grows, it is hard to beat.
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Gel Battery 12V/90Ah Victron 12V 90Ah gel solar battery
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Victron Energy Gel Battery 12V/90Ah

$242.25

This Victron gel battery is sealed and maintenance-free with a long service life, sold in the US through specialty solar dealers, not Amazon.

  • Capacity: 90 Ah (C20), 80 Ah (C10)
  • Voltage / Type: 12 V / Gel VRLA
  • Service life: Up to 12 years
  • US channel: Specialty solar dealers, not Amazon
  • Sealed gel VRLA, sold via US solar dealers
The battery is the heart of a solar kit, and this Victron Energy 90Ah gel battery is a proven choice: 100% sealed, maintenance-free, with a very long service life even after deep discharges. Victron does not sell direct in the US; this exact battery (BAT412800104) is genuinely stocked at $242.25 through NAZ Solar Electric, a specialty renewable energy dealer, one of several authorized channels carrying Victron gel batteries for American buyers instead of a big-box retailer.
Victron doesn't sell to US shoppers directly, and this battery makes that reality clear fast: you won't find it on Amazon.com the way you will Victron's inverters or MPPT controllers. It lives instead with specialty solar and marine dealers, and we tracked it down at NAZ Solar Electric for $242.25, genuinely in stock and ready to ship, no minimum order quantity to wrestle with, unlike a couple of other Victron dealers we checked that only sell it in lots of six. Once it's in hand, the case for it is the same one that has made Victron a benchmark name for years: fully sealed gel construction with no maintenance, no venting fumes, and a rated design life up to 12 years even through repeated deep discharges, the kind of reliability that lets you install it in a poorly ventilated space without a second thought. The honest tradeoff is convenience and price: sourcing it takes a bit more legwork than a one-click Amazon order, and at over $2.50 per amp-hour, you're paying for Victron's name and longevity rather than getting the cheapest gel battery on the market.
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Related questions

LiFePO4 wins on a fixed installation: 3,000 to 4,000 cycles against 500 to 1,000, no thermal drift and a stable voltage down to 90 per cent discharge. NMC lithium-ion only keeps the edge on weight and bulk, which matters for genuinely portable use.

With a charger or controller set to the LiFePO4 profile, absorbing at 14.2 to 14.6 V for a 12 V bank, and without a prolonged float stage. A classic lead-acid charger will undercharge it or hold it at voltage needlessly. The built-in BMS protects against overcharge, but it does not replace a correct charge profile.

Yes in most installations, on three conditions: adapt the charger profile, check that the alternator or controller copes with the higher inrush current, and check the dimensions, since LiFePO4 is more compact. The gain is clear: 100 Ah of LiFePO4 gives as much usable energy as 200 Ah of lead, at half the weight.

A 400 watt panel produces 1.4 to 1.8 kWh on a good summer day. To store that output without clipping it you need at least 150 Ah at 12 V (1.9 kWh). Below 100 Ah the battery saturates by midday and the energy is lost. Rule of thumb: 25 to 40 Ah of 12 V storage per 100 watts of panel.

It discharges happily down to -20 °C, but it must not be charged below 0 °C: that causes metallic lithium plating which destroys the cells irreversibly. Models aimed at vans and boats therefore include internal heating or a cold charge cut-off managed by the BMS.

A LiFePO4 accepts 80 to 90 per cent discharge without harm, against 50 per cent at most for a lead-acid battery if you want to preserve its life. That is why you should always compare genuinely usable energy, not the raw capacity printed on the label.

Need help choosing?

How many days off-grid can I go? Your battery, your panels, your fridge and your region: we work out how many days you last unplugged, under cloud as well as sun. Open the calculator → Which solar panel for my power station? Pick your station: we list the solar panels in our catalogue compatible with its solar input, best match first. Open the calculator →

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