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12V 400Ah+ LiFePO4 battery prices

Every 12V 400Ah+ LiFePO4 listing we found on eBay, ranked by price per kWh including shipping. Updated Oct 11, 2026 14:55 UTC.

Cheapest new, per kWh$104.04
Cheapest used, per kWh$292.97
Cheapest single battery$799.00
Condition
Energy
Brand
$/kWhPrice ShippingkWhBattery BrandConditionListing
$104.04$799.00free7.6812.8V 600AhNew12V 600Ah LiFePO4 Lithium Battery 200A BMS, 7680Wh 15000+ Cycle for RV Solar
$110.94$852.00free7.6812.8V 600AhNewNewtiPower 12V 600Ah LiFePO4 Lithium Battery 7680Wh 250A BMS Solar Off-grid RV
$115.88$889.99free7.6812.8V 600AhNewNewtiPower 12V 600Ah LiFePO4 Lithium Battery 7680Wh 300A BMS Solar Off-grid RV
$119.47$1,957.35free16.3812.8V 640Ah ×2New2Pack 12V 640Ah 16KWh LiFePO4 Battery Deep Cycles 250A BMS Off-Grid Marine Solar
$156.12$1,199.00free7.6812.8V 600AhVatrerNewVATRER POWER 12V 600Ah Lithium LiFePO4 Battery with APP Monitoring and 300A BMS
$166.02$850.00free5.1212.8V 400AhNew12V 400Ah LiFePO4 Lithium Battery Up to 15000 Deep Cycle LiFePO4 Battery Perfect
$169.14$1,299.00free7.6812.8V 600AhVatrerNewVATRER POWER 12V 600AH Self-Heating APP LiFePO4 Lithium Battery 300A BMS
$174.25$1,025.99free5.8912.8V 460AhLiTimeNewLiTime 12V 460Ah 5888Wh LiFePO4 Lithium Battery for Home Solar Off grid RV Cabin
$176.13$2,524.99$25.0014.3412.8V 560Ah ×2SOKNew2 Pack SOK SK12V280H 12V 560Ah Heated Bluetooth LiFePO4 Batteries
$291.02$1,450.00+ ship5.1212.8V 400AhNewBigBattery 12V HUSKY 2 - 400Ah 5.12kWh LiFePO4 Battery RV Marine
$292.97$1,500.00free5.1212.8V 400AhRenogyUsedRenogy Renogy REGO 12V 400Ah Cold Weather LiFePO4 Battery Backup Power
$331.84$1,699.00$100.005.1212.8V 400AhNew12V (12.8V), 400Ah LiFePo4 preferred battery pack
$425.80$2,180.11free5.1212.8V 400AhRenogyNewRenogy RBT12400LFPL-SHBT-G1-BE-US 12V 400Ah LiFePO4 Battery with Heating

Showing 13 of 13 listings

Buying tips

Price per kWh is the fairest way to compare batteries of different sizes: a 12V 100Ah LiFePO4 battery stores 1.28 kWh, a 12V 200Ah 2.56 kWh, a 48V 100Ah server-rack battery 5.12 kWh. Check the BMS current rating against your inverter, whether the battery has low-temperature charge protection if it will be charged below freezing, and the warranty. Very cheap no-name listings sometimes overstate capacity.

How this table works

We collect Buy It Now listings from eBay US several times a day and divide the total price, including shipping, by the stored energy: nominal voltage (12.8 V, 25.6 V, 38.4 V, 51.2 V or 3.2 V per cell) times the amp-hours in the title, times the number of batteries in the listing. We remove chargers, BMS boards, cables, cases and other accessories, solar kits and power stations, lead-acid and other lithium chemistries, listings that offer several sizes in one ("7Ah/100Ah"), batteries under 50 Ah and prices that are too low to be real.