What is the difference between this and a lead-acid battery?

It uses lithium iron phosphate cells, so it is lighter, charges faster and lasts more cycles than lead-acid. It also needs a lithium-compatible charger, not an old lead-acid one.

Which capacity should I pick?

Match it to your load and runtime: small packs for lights and electronics, mid sizes for e-bikes and scooters, and the largest for solar storage. Add up your daily watt-hours and leave headroom.

Does the built-in BMS handle charging?

The BMS protects the cells from overcharge, over-discharge and short circuits. Charge at the 14.4V figure the maker lists, using a charger set for LiFePO4.

Can I wire several together for 24V or 48V?

Series connection is common with 12V LFP packs, but confirm the limit with the seller first. The BMS in each pack must be rated for the series voltage.

Is it safe to keep indoors?

LiFePO4 is more thermally stable than other lithium chemistries, which is why it is popular for home solar. Store it dry and within the maker's temperature limits.

JMBatteries 12V LiFePO4 Lithium Battery Pack with BMS

Best price now

$100.00at JMBatteriesChecked Nov 5

Prices are checked against each store and labelled with when.

Visit JMBatteries

JMBatteries 12V LiFePO4 Lithium Battery Pack with BMS

Best price now

$100.00at JMBatteriesChecked Nov 5

Prices are checked against each store and labelled with when.

Visit JMBatteries

Ask our agent about this product

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Price facts

Last seen at $100.00 at JMBatteries on Nov 5.

Our take on the JMBatteries 12V LiFePO4 Lithium Battery Pack with BMS

The JMBatteries 12V LiFePO4 pack is a rechargeable lithium iron phosphate battery with a built-in battery management system, sold in capacities from 10Ah up to 300Ah. LFP chemistry is the main draw: it holds up to more charge cycles than lead-acid, weighs less for the same capacity, and is safer against thermal runaway. It is aimed at e-bike and scooter builds, small EV projects and solar storage, and it drops into 12V lead-acid slots. Against premium brands like Battle Born or Renogy, it leans on the wide capacity spread and the certifications (UN38.3, CE, ROHS, MSDS), but it lacks the track record and US support those names carry.

Best forDIY solar and off-grid storageE-bike, scooter and small EV buildsReplacing 12V lead-acid batteriesBuyers who need an unusual capacity

Pros

LFP chemistry lasts far more cycles than lead-acid
Built-in BMS protects against overcharge and over-discharge
Eight capacities from 10Ah to 300Ah
Certified UN38.3, CE, ROHS and MSDS
Lighter than a lead-acid battery of similar capacity

Cons

Little independent test data or long-term user feedback
No stated continuous discharge current or BMS cut-off figures
Charging profile and low-temperature limits not spelled out
Support and warranty service run from overseas

JMBatteries 12V LiFePO4 Lithium Battery Pack with BMS prices at every store

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Availability unknown
$100.00Checked Nov 5
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JMBatteries 12V LiFePO4 Lithium Battery Pack with BMS price history

Lowest price we've seen: $100.00 on Nov 6 at JMBatteries. Tracked across 1 store since Nov 6.

From JMBatteries

12V LiFePO4 lithium battery pack with BMS
Available in 12.8V 10Ah, 20Ah, 30Ah, 50Ah, 100Ah, 150Ah, 200Ah and 300Ah capacities
Chargeable LFP (lithium iron phosphate) battery
Suited to electric bicycles/scooters, electric vehicles and solar energy storage systems
Can replace lead-acid batteries
Certified MSDS, UN38.3, CE and ROHS

Sizes: 12.8V10Ah, 12.8V20Ah, 12.8V30Ah, 12.8V50Ah, 12.8V100Ah, 12.8V150Ah, 12.8V200Ah, 12.8V300Ah
Materials: Anode material: LFP (lithium iron phosphate)
Care: Dry storage
Guarantee: 10 years warranty
Returns: 30-day return policy; item must be in the same condition received, unworn or unused, with tags and original packaging, and a receipt or proof of purchase is req
Shipping: Free shipping on all orders (retail only); prices include DDP shipping, VAT/tax and customs duties, though some countries may require additional freight charges

About the JMBatteries 12V LiFePO4 Lithium Battery Pack with BMS

This is a 12.8V lithium iron phosphate (LiFePO4) battery pack with a built-in battery management system (BMS). It is rechargeable and uses an LFP anode material. It is stored dry.

It is meant to replace lead-acid batteries. It can be used in electric bicycles and scooters, electric vehicles, and solar energy storage systems.

Model: JM-12.8V
Chemistry: LFP (lithium iron phosphate)
Nominal voltage: 12.8 V
Capacities: 10Ah, 20Ah, 30Ah, 50Ah, 100Ah, 150Ah, 200Ah, 300Ah
Charging: 14.4 V
Discharging: 10 V
Rechargeable: Yes
Battery management: Built-in BMS
Applications: Electric bicycles/scooters, electric vehicles, solar energy storage systems
Certifications: MSDS, UN38.3, CE, RoHS
Storage: Dry storage
Warranty: 10 years
Origin: Guangdong, China

Questions and answers

What is the difference between this and a lead-acid battery?: It uses lithium iron phosphate cells, so it is lighter, charges faster and lasts more cycles than lead-acid. It also needs a lithium-compatible charger, not an old lead-acid one.
Which capacity should I pick?: Match it to your load and runtime: small packs for lights and electronics, mid sizes for e-bikes and scooters, and the largest for solar storage. Add up your daily watt-hours and leave headroom.
Does the built-in BMS handle charging?: The BMS protects the cells from overcharge, over-discharge and short circuits. Charge at the 14.4V figure the maker lists, using a charger set for LiFePO4.
Can I wire several together for 24V or 48V?: Series connection is common with 12V LFP packs, but confirm the limit with the seller first. The BMS in each pack must be rated for the series voltage.
Is it safe to keep indoors?: LiFePO4 is more thermally stable than other lithium chemistries, which is why it is popular for home solar. Store it dry and within the maker's temperature limits.
Where is the JMBatteries 12V LiFePO4 Lithium Battery Pack with BMS cheapest?: At JMBatteries, for $100.00, as of our latest check.