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Deal.ai › LiTime
LiTime
LiTime 12V 300Ah LiFePO4 Lithium Battery

LiTime 12V 300Ah LiFePO4 Lithium Battery

5(34 ratings)

Best price now

$339.99at AmazonChecked 34 min ago

43% under what the other stores charge

Compared across 4 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. As an Amazon Associate, Deal.ai earns from qualifying purchases.

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Price facts

  • Lowest price today: $339.99 at Amazon (checked Nov 13, 2026).
  • Checked at 4 stores.

Our take on the LiTime 12V 300Ah LiFePO4 Lithium Battery

The LiTime 12V 300Ah is a lithium iron phosphate deep-cycle battery with 3840Wh of usable energy and a 200A battery management system. It delivers up to 2560W of output and handles 200A continuous charge and discharge with an 800A surge for one second. EV-grade cells are rated for more than 4000 cycles at 100% depth of discharge, and up to four batteries can be wired in series and four in parallel for a 51.2V, 1200Ah bank. It suits RV, marine, off-grid and home backup setups where lead-acid banks are heavy and short-lived. Buyers describe it as a solid replacement for multiple 6V gel batteries, with build quality and weight that compare well against lead-acid. It is not a starter battery and must not be mounted with the top or front side facing down.

Best forRV and camper house powerOff-grid cabin and solar storageHome backup banksMarine house battery duty
Pros
  • 3840Wh from a single battery
  • 200A continuous charge and discharge
  • 800A surge for one second
  • 4000+ cycles at 100% depth of discharge
  • Expandable to 51.2V 1200Ah with 4P4S wiring
  • About two-thirds the weight of equivalent lead-acid
Cons
  • Not for engine starting
  • Large and heavy at about 20.55 x 9.33 x 8.58 inches
  • Needs a compatible lithium charger or solar setup
  • Cannot be mounted top or front side down

LiTime 12V 300Ah LiFePO4 Lithium Battery prices at every store

  • Li TimeNew

    In stock

    $599.99Free shippingChecked 34 min ago
    Visit Li Time
  • eBayRefurbished

    Availability unknownSold by litime

    $335.99Free shippingChecked 34 min ago
    Visit eBay
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $339.99+ $30.00 shippingChecked 34 min ago
    Visit Amazon
  • DartelloNew

    Availability unknown

    $3,179.99Checked 34 min ago
    Visit Dartello

Store links may earn us a commission.

LiTime 12V 300Ah LiFePO4 Lithium Battery price history

$599.99$339.99
Nov 1Nov 13

Lowest price we've seen: $339.99 on Nov 13 at Amazon; highest $599.99 on Nov 1. Tracked across 3 stores since Nov 1.

What reviewers say

  • 5 / 534 ratings

Buyers rate it highly and describe it as a dependable replacement for lead-acid banks in campers and off-grid systems. They mention solid build quality and lighter weight than the batteries it replaced.

What people mention
  • CapacityPraisedOwners say one battery covers the power needs of a whole camper.
  • Lead-acid swapPraisedBuyers report it replaced multiple 6V gel batteries with no loss of runtime.
  • Build qualityPraisedOwners describe the construction as solid and well made.
  • WeightPraisedBuyers note it is noticeably lighter than the lead-acid batteries it replaces.
  • Long-term useMixedAt least one buyer had not installed it yet, so durability reports are limited.

From Li Time

  • 3840Wh energy capacity for RV, off-grid and emergency backup use
  • 200A BMS with 200A max continuous charge/discharge and 800A surge discharge (1s)
  • Protection against overcharge, over-discharge, over-current, overheating and short circuit
  • EV-grade LiFePO4 cells rated 4000+ cycles at 100% DOD and over 10 years lifespan
  • Max 4P4S expansion, up to a 51.2V 1200Ah system
  • 2/3 lighter and 2X energy versus lead-acid, replacing 3x 12V 100Ah lead-acid batteries
Materials
LiFePO4 prismatic cells; ABS housing
Fit
Size L20.55 W9.45 H8.58 in; M8 bolt terminals; do not orient with top or front side downward
Care
Do not use as a starter battery; charge only above 32°F (0°C); store at 50% state of charge and recharge to 50% at least every three months
Guarantee
5-year warranty with technical support within 24 hours; 30-day price match
Returns
30 days no-questions-asked return
Shipping
Free shipping from local warehouses; order today, ships in 1 business day via FedEx, UPS or Amazon Logistics
Packs
1 Pack, 2 Pack, 4 Pack, and 1 Pack + 500A Bluetooth Shunt options

About the LiTime 12V 300Ah LiFePO4 Lithium Battery

This is a 12V 300Ah lithium iron phosphate (LiFePO4) battery with 3,840Wh of energy capacity. It uses EV-grade prismatic LiFePO4 cells in an ABS housing. It is used for RVs, marine setups, off-grid cabins, home energy storage, solar systems and emergency backup.

A 200A battery management system (BMS) protects against overcharge, over-discharge, over-current, overheating and short circuits. The cells are rated for 4,000+ cycles at 100% depth of discharge and a lifespan of over 10 years. It can replace three 12V 100Ah lead-acid batteries and is 2/3 lighter than lead-acid.

Up to 4 batteries can be connected in parallel and 4 in series (4P4S), for a system of up to 51.2V 1200Ah. It can be charged with a battery charger, solar panel, generator or alternator. It is not a starter battery. Do not mount it with the top or front side facing down. Other orientations are fine.

Voltage
12V
Capacity
300Ah, 3840Wh
Cell type
LiFePO4 prismatic cells (EV-grade)
Housing
ABS
Max output power
2560W
BMS
200A
Discharge/charge current
200A max. continuous
Surge current
800A discharge (1s)
Cycle life
4000+ cycles at 100% DOD
Lifespan
10+ years
Expansion
Max. 4P4S, up to 51.2V 1200Ah
Charging methods
Battery charger, solar panel, generator, alternator

What buyers say

Buyers like
  • Works perfectly for off-grid and RV power needs
  • Replaced multiple 6V gel batteries and covered all camper needs
  • Solid packaging and high perceived build quality
  • Great customer service
  • Fast delivery
  • Light weight compared to lead-acid
Buyers complain about
  • One reviewer had not installed it yet

Questions and answers

Can it start an engine?
No. LiTime says not to use it as a starter battery and points to its marine starting series instead. Use it for house power, storage and backup.
How many can I connect together?
Up to four in series and four in parallel, for a 51.2V, 1200Ah bank. Keep the batteries matched and wired evenly.
What can it run?
It supplies up to 2560W continuously at 12V, enough for an RV or cabin loads such as lights, a fridge, fans and electronics through an inverter.
How do I charge it?
LiTime lists four ways: a battery charger, solar panels, a generator or an alternator. Use a charger with a lithium profile and stay within 200A.
How long does it last?
The cells are rated for more than 4000 cycles at 100% depth of discharge, which LiTime puts at over 10 years of life.
How should it be mounted?
Do not orient it with the top or front side facing down. Other orientations are allowed.
Where is the LiTime 12V 300Ah LiFePO4 Lithium Battery cheapest?
At Amazon, for $339.99, 43% under what the other stores charge, as of our latest check.
What do buyers say about the LiTime 12V 300Ah LiFePO4 Lithium Battery?
Rated 5 out of 5 from 34 ratings. Buyers like: Works perfectly for off-grid and RV power needs; Replaced multiple 6V gel batteries and covered all camper needs; Solid packaging and high perceived build quality. Common complaints: One reviewer had not installed it yet.
Where can I buy the LiTime 12V 300Ah LiFePO4 Lithium Battery?
4 stores we checked sell it, including Amazon, eBay, Li Time, Dartello.

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Terminals
M8 bolt
Dimensions
Length 20.55 in, height 8.58 in
Certifications
UL-1973 tested; FCC, CE, RoHS, UN38.3
Replaces
3 x 12V 100Ah lead-acid batteries
Charging temperature
Charge only above 32°F (0°C)
Storage
Store at 50% state of charge; recharge to 50% at least every three months
Orientation
Not with top or front side facing down
Not for
Use as a starter battery
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