Nomad Gear Finder
HumsiENK HS12V640AH250BT
HumsiENK 12V 640Ah LiFePO4 Battery 8.19kWh Massive Capacity Lithium Battery | 250A BMS (3200W Output), Bluetooth & Low-Temp Cut-Off, Replaces 6x 12V 100Ah for RV, Off-Grid Solar, Marine
A 12 V 640 Ah (8,192 Wh) battery with a 250 A BMS, 300 A peak discharge, Bluetooth 5.0 and an IP65 ABS case. Its capacity is the largest of the 12 V batteries listed, replacing several 100 Ah units with one case, though it is heavy at about 109 lbs per Amazon. Low-temperature charge cut-off and a 5-year warranty suit large RV or marine banks in mild climates.
- Battery capacity
- 640 Ah
- Voltage
- 12 V
- Max continuous discharge
- 250 A
- Peak discharge current
- 300 A
- Brand
- HumsiENK
Rankings in the liFePO4 batteries Category
How does this product compare with others in Nomad Gear Finder's liFePO4 batteries category?
- Battery capacity 640 Ah The highest of 96
- Battery capacity 8,192 Wh Higher than 98% of 87 others
- Max continuous discharge 250 A Higher than 89% of 86 others
- Weight 111.88 lbs 50.75 kg Higher than 98% of 88 others
- Length 25.00 in. 635 mm Higher than 95% of 69 others
- Recommended charge current 128 A Higher than 94% of 34 others
Compare this product with close matches Compare with all liFePO4 batteries
Videos for this product
We searched YouTube for reviews, installation guides, and manufacturer videos for HumsiENK HS12V640AH250BT. Note that many product videos are sponsored by manufacturers, so keep in mind that some reviews may be biased in favor of the product. Negative videos are less likely to get made and posted.
Search YouTube for more HumsiENK HS12V640AH250BT videos
About these videos
Videos may not be an exact match for this product, or may contain inaccurate information. Check product details before purchase, and see our About page for more information.
Videos are from YouTube; videos load from YouTube when you press Play.
Specifications
These details are subject to change and may not be current. Please check Amazon or manufacturer web site to confirm before purchase; see our About page for more information.
- Model
- HS12V640AH250BT
- Manufacturer page
- Link
- Popular brand
- No
Core specs
- Battery capacity
- 640 Ah
- Battery capacity
- 8,192 Wh
- Voltage
- 12 V
- Max continuous discharge
- 250 A
- Peak discharge current
- 300 A
- Charge voltage
- 14.4 V
- Max charge current
- 250 A
- Cycle lifespan
- 6,000+ Cycles
- Self-discharge
- 3.0 %/month
Multiple Batteries
- Max batteries in parallel
- 4
- Max batteries in series
- 4
Temperature Range
- Low-temp charge cut-off
- Yes
- Charging temp min
- 32 ℉ 0 ℃
- Discharging temp min
- -4 ℉ -20 ℃
- Discharging temp max
- 149 ℉ 65 ℃
Internals
- App connectivity
- Bluetooth 5.0
- Built-in Bluetooth
- Yes
Physical Attributes
- Terminal type
- M8
- Weight
- 111.88 lbs 50.75 kg
- Width
- 9.61 in. 244 mm
- Length
- 25.00 in. 635 mm
- Depth/Height
- 8.58 in. 218 mm
- Housing material
- ABS
- IP rating
- IP65
Warranty & Certification
- Warranty
- 5 years
Temperature Range
- Charging temp max
- 131 ℉ 55 ℃
Core specs
- Recommended charge current
- 128 A
- Cycle life (80% DoD)
- 6,000 cycles
Features
Details from the HumsiENK HS12V640AH250BT Amazon listing:
- 8.19kWh MONSTER CAPACITY & SPACE SAVER: Why wire six 100Ah batteries when you can have one? Delivering a massive 640Ah (8192Wh) capacity, this ultimate power beast weighs only 109.02 lbs and measures a sleek 24.92 x 8.58 x 9.53 inches. It eliminates the nightmare of complex parallel wiring and wasted space. Equipped with standard M8 terminals, it’s the perfect drop-in upgrade for tight RV compartments or off-grid solar setups
- 250A ROBUST BMS & 3200W OUTPUT: Power your heavy-duty appliances with zero hesitation. Upgraded with a heavy-duty 250A Battery Management System, this 12V lithium battery effortlessly handles up to 3200W of continuous output. Easily run your 15,000 BTU RV air conditioner, microwave, espresso machine, and fridge simultaneously without triggering BMS shut-offs. Pure, reliable deep cycle energy for your luxury boondocking experience
- SMART BLUETOOTH & LOW-TEMP CUT-OFF: Total energy control at your fingertips. The built-in Bluetooth module syncs with the Humsienk APP, letting you monitor real-time voltage, capacity (SOC), and cell health. Engineered for extreme weather, it features a smart low-temperature cut-off that automatically stops charging below 32°F (0°C) to prevent cell damage, ensuring your LiFePO4 battery stays protected during harsh winter camping
- MASSIVE EXPANSION FOR RV & MARINE: Ready to build the ultimate power wall? This 12V 640Ah battery supports massive expansion up to 4 in series and 4 in parallel (Max 4S4P), allowing you to create a staggering 51.2V 2560Ah (131kWh) energy storage system. It’s the elite, scalable solution for off-grid cabins, home backup power, yachts, and heavy-duty marine applications
- 10-YEAR LIFESPAN & 5-YEAR WARRANTY: Invest with absolute confidence. Utilizing EV-Grade A cells, it delivers 6000+ deep cycles and up to a 10-year service life—outperforming traditional lead-acid batteries by 10X. The smart BMS provides flawless protection against overcharge, short circuits, and extreme temperatures. Backed by elite safety certifications and a solid 5-year warranty, your investment is bulletproof
Similar products from other brands
Chosen for their similar specs and price:
 This productHumsiENK HS12V640AH250BT |
 Renogy RBT12300LFP-M |
 Wattcycle WT12V314AH200MINIBT |
 12V 300AH Low Temp Cutoff LiFePO4 Lithium Battery, Built in 200A BMS | Max 2560W Power Output, 5000+ Cycles Rechargeable Lithium Deep Cycle Battery, for RV/Camper, Backup Power, Solar, Off Grid |
|
|---|---|---|---|---|
| Price | $949.99 | $799.99 | $503.49 | $539.99 |
| Model | HS12V640AH250BT | RBT12300LFP-M | WT12V314AH200MINIBT | – |
| Popular brand | No | Yes | – | No |
| Battery capacity Ah | 640 | 300 | 314 | 300 |
| Battery capacity Wh | 8,192 | 3,840 | 4,019 | 3,840 |
| Voltage V | 12 | 12 | 12 | 12 |
| Max continuous discharge A | 250 | 200 | 200 | 200 |
| Peak discharge current A | 300 | 380 | 600 | 500 |
| Charge voltage V | 14.4 | 14.4 | 14.6 | 14.6 |
| Max charge current A | 250 | 150 | 200 | 200 |
| Cycle lifespan | 6,000+ Cycles | 5,000 Cycles to 80% Original Capacity | 6,000+ Cycles | 5,000+ Cycles |
| Self-discharge %/month | 3.0 | – | 3.0 | 3.0 |
| Max expanded capacity Wh | – | – | 64,307 | – |
| Max batteries in parallel | 4 | 4 | 4 | 4 |
| Max batteries in series | 4 | 4 | 4 | 4 |
| Self-heating | – | No | – | – |
| Low-temp charge cut-off | Yes | Yes | Yes | Yes |
| Charging temp min ℉ | 32 | 32 | 32 | 32 |
| Charging temp min ℃ | 0 | 0 | 0 | 0 |
| Discharging temp min ℉ | -4 | -4 | -4 | -4 |
| Discharging temp max ℉ | 149 | 149 | 140 | 140 |
| Discharging temp min ℃ | -20 | -20 | -20 | -20 |
| Discharging temp max ℃ | 65 | 65 | 60 | 60 |
| App connectivity | Bluetooth 5.0 | – | Bluetooth 5.0 | – |
| Built-in Bluetooth | Yes | No | Yes | – |
| Terminal type | M8 | M8 | M8 | M8 |
| Weight lbs | 111.88 | 55.10 | 59.52 | 55.23 |
| Weight kg | 50.75 | 25.00 | 27.00 | – |
| Width in. | 9.61 | 7.64 | 7.64 | 7.56 |
| Width mm | 244 | 194 | – | – |
| Length in. | 25.00 | 15.12 | 15.12 | 15.16 |
| Length mm | 635 | 384 | – | – |
| Depth/Height in. | 8.58 | 9.96 | 9.76 | 9.76 |
| Depth/Height mm | 218 | 253 | – | – |
| Housing material | ABS | – | ABS plastic | – |
| IP rating | IP65 | IP65 | IP65 | IP65 |
| Warranty | 5 years | 5 Years | 5 Years | – |
| Certifications summary | – | MSDS, UN38.3, FCC, CE, PSE, RCM, RoHS, UKCA | IEC, RoHS, CE, FCC, UN38.3 | FCC, CE, RoHS, UN38.3 |
| UN 38.3 tested | – | Yes | Yes | Yes |
| CE marked | – | Yes | Yes | Yes |
| Charging temp max ℉ | 131 | – | – | 122 |
| Charging temp max ℃ | 55 | – | 70 | 50 |
| Cell balancing | – | – | – | Automatic |
| Recommended charge current A | 128 | – | 63 | 60 |
| Cycle life (80% DoD) cycles | 6,000 | 5,000 | 6,000 | – |
Data sources
Data for this product compiled from this source:
Prices from Amazon as of . Product prices and availability are accurate as of the date and time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of the product. As an Amazon Associate I earn from qualifying purchases.
Specifications last updated Nov 5, 2026.