Any tips for connecting batteries in series or parallel?

Yes – fully charge each battery first. Use the same brand, model, capacity, and BMS, and buy them within 3–6 months of each other. For multiple connections, use a bus bar.

Can I use the battery right after delivery?

For shipping safety, it comes with ≤40% charge. Fully charge it before first use.

Can I use this battery on a boat?

Yes, as a service battery for things like a fridge or coffee maker. Keep it dry and away from water. Not for starting engines or trolling motors.

Can I charge or discharge it in cold weather?

Discharge works from -4°F (-20°C) to 140°F (60°C). But never charge below 32°F (0°C) – it damages the cells. The BMS will block charging. In winter, bring it indoors above 41°F (5°C) before charging.

Does the package include a LiFePO4 charger?

No. Please use only a dedicated 14.6V LiFePO4 smart charger. Using a regular lead-acid or other lithium charger can damage the battery.

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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2 Packs 12V 100Ah LiFePO4 Lithium Battery With 100A BMS

Product ID: 700278678

Details

Automotive Fit Type
Universal Fit
Battery Capacity
100 amp_hours
Battery Cell Composition
Other Than
Brand
dumfume
Item Weight
19.5 kg
Size
12V100AH

⚡100A built-in BMS protection

🔋1280Wh energy capacity

🪶2/3 lighter than AGM batteries

$1123.58

Duties & taxes included

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Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Power Your Freedom with Lightweight, Long-Lasting Energy!

COMPACT POWERHOUSE - 25% smaller size packs massive 1280Wh energy for sleek, space-saving setups.
SMART SAFETY GUARD - Integrated 100A BMS shields against overcharge, short circuits, and overheating for worry-free use.
PLUG PLAY UPGRADE - Seamlessly replaces lead-acid batteries with no rewiring; supports series/parallel for scalable power.
UNMATCHED LONGEVITY - Up to 15,000 cycles at 60% DOD means your battery outlasts the competition by years.
LIGHTWEIGHT ENERGY BOOST - Weighs only 21.6 lbs—two-thirds lighter than traditional AGM batteries for effortless portability.

The Dumfume 2-Pack 12V 100Ah LiFePO4 Lithium Batteries deliver a compact 1280Wh capacity with 40% higher energy density, weighing just 21.6 lbs each. Featuring a robust 100A Battery Management System, these batteries offer up to 15,000 charge cycles and a durable ABS casing, making them ideal for RVs, off-grid, marine, and home energy storage. Designed as a hassle-free drop-in replacement for lead-acid batteries, they support scalable configurations up to 51.2V 400Ah, combining cutting-edge safety, longevity, and portability.

Specifications

Asin	B0DLVZCGGR
Automotive Fit Type	Universal Fit
Battery Capacity	100 amp_hours
Battery Type	Other Than Listed
Best Sellers Rank	#4,434 in Automotive (See Top 100 in Automotive) #24 in Automotive Replacement Batteries
Brand Name	dumfume
Compatible With Vehicle Type	RV
Customer Reviews	4.4 4.4 out of 5 stars (867) 4.4 out of 5 stars
Item Highlight	15000+ Cycles Group 31 Rechargeable Battery 1280Wh High Energy Density, Ideal for RVs, Off-Grid,Marine
Item Weight	19.5 kg
Manufacturer	dumfume
Manufacturer Part Number	2*DFBattery-12V100A
Manufacturer Warranty Description	5 Year Manufacturer
Model Number	12.8V 100AH
Number Of Items	2
Size	(13x6.69x8.62)2PCS 12V100AH
Unit Count	2 Count
Voltage	12.8 volts

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