SKU: 62040970074

BigBattery 12V HUSKY 2 LiFePO4 Battery | 400Ah, 5.12kWh | Built-In BMS + Ring Terminal | 10-Year Warranty

$652.50 $725.00
Save 10%
No.2 Bestseller on watersyst.com >

Pay in installments of $181.25 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 7 - Aug 12

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

BigBattery 12V HUSKY 2 LiFePO4 Battery | 400Ah, 5.12kWh | Built-In BMS + Ring Terminal | 10-Year WarrantyPower your off grid system, RV, or backup setup with the BigBattery 12V Husky 2, a high capacity, lithium iron phosphate battery designed for reliable, long term energy storage. Delivering 5. 12kWh of power and 400Ah of capacity, this 12V battery packs serious performance into a compact, plug and play solution. With an integrated BMS, pre installed 5 16" ring terminals, and ultra safe LiFePO4 chemistry, the Husky 2 is engineered for effortless DIY

Power your off-grid system, RV, or backup setup with the BigBattery 12V Husky 2, a high-capacity, lithium iron phosphate battery designed for reliable, long-term energy storage. Delivering 5.12kWh of power and 400Ah of capacity, this 12V battery packs serious performance into a compact, plug-and-play solution.

With an integrated BMS, pre-installed 5/16" ring terminals, and ultra-safe LiFePO4 chemistry, the Husky 2 is engineered for effortless DIY installation and years of maintenance-free use.

Key Features:

  • Massive Capacity: 400Ah and 5.12kWh of 12V power in a single unit.

  • DIY Installation: Pre-installed ring terminals make setup quick and hassle-free.

  • Safe & Efficient: Built-in smart BMS protects against overcharging, short circuits, and more.

  • Long Lifespan: 3,000–5,000+ cycles with 10+ years of usable life.

  • Compact & Portable: Space-saving design fits easily into RVs, vans, or home systems.

  • Versatile Use: Perfect for off-grid living, van builds, backup power, or marine applications.

  • Legendary Support: Backed by a 10-year warranty and Shop Solar’s top-rated customer service.

Specifications:

  • Voltage: 12.8V

  • Capacity: 400Ah (5.12kWh)

  • Max Continuous Discharge: 150A

  • Dimensions: 20.6” x 10.2” x 9.8”

  • Weight: 103.6 lbs

  • Connector: 5/16" Ring Terminal

  • Operating Temp: -4°F to 140°F

Upgrade to a battery built for serious energy independence, without the complexity or contractor fees.

User Manual / Specifications:

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 62040970074

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.9 ★★★★★
Based on 18 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
M
Verified Purchase
Marooned
Massapequa, US
★★★★★ 3
Prevents me from adjusting the air vent up or down
It's true that it doesn't block the air flow. I had to put it on the left passenger side vent to retain the ability to point the driver's air vents where I want. With it over there, I have to turn my head too far to the right when I'm driving to see my phone, and the passenger can't adjust the vent up or down. Also, phone can't tilt as far left and right as other ones. Good price, unique design, easy to install, feels sturdy, holds iPhone SE fine, and doesn't block my view of the entertainment system.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 27, 2026
S
Verified Purchase
ShopDoc1
Los Angeles, US
★★★★★ 5
BETTER THAN A CUP HOLDER
I had a cup-holder mount and it was always falling apart. No matter how it was turned, to unfasten my phone I had to move the spring part of the holder in the same direction that removes the entire clip from the stem of the mount. Of course, I eventually lost the clip. What a bad idea. And, in a 4-Runner, on my cupholder, MAPS sometines got lost and I would have to hold my phone up to the windshield for a minute to get back MAPS back on track. Also not a good Idea. We're not supposed to be handeling a phone and driving so holding my phone up to the windshield is kinda like flagging down a cop. (The 4-Runner has hand-free phone service, as well as some kind of circuitious navigation but it's always lost.) . So, for about $9 on sale, I though I would try one of these LISEN mounts. It works great ! Really. Easy to attach securely but scratchlessly it to my center AC/heat vent and It is infantly moveable. Swing the arm 360 degrees, in and out, phone up or saideways, and tilt the phone to me or the Boss. If I get bored, I can relocate it anywhere along the center vents, or even over to my side vent if I have nothing better to do.. It is sturdy, quiet, easy to clamp in my S21, and release is simplye by pushing the button on the back. Sooo much better that my previous mount, for a third of the price. It might be the best $9 you ever spent. And still worthwhile,if you have to shell out the $18. (But I always try to avoid paying full price for anything). Enjoy !
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 10, 2023
S
Verified Purchase
Spark Yip
Alexandria, US
★★★★★ 5
Usable but average, with only basic build quality and stability.
This in-car phone mount is fairly average overall. It’s easy to install and works for basic navigation needs, but the build quality isn’t particularly impressive. The materials feel a bit ordinary, and stability can be an issue on rough roads, with some looseness over time. It’s usable, but not outstanding.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 10, 2026
B
Verified Purchase
Big Al NJ
Bozeman, US
★★★★★ 5
Best wax ever - not kidding!
We have 2 classic cars we restored and put in shows, along with our regular daily drivers. Some of the cars are darker colors, like grey, blue, or black, and the others are white and a light seafoam green. The problems I've had with other waxes, including other higher end products was streaking, and not being able to remove the swirls. Not so with Black light. This is hands down the best wax I have ever used. The application is simple, and I've done it in shade as well as sun, both with excellent results. Use a microfiber applicator to apply, thin, not thick coats in a circular motion. Then wait - let it set for 15 minutes. Final step - use a clean microfiber cloth to remove. It removes so easy, and leaves no swirl or haze like other waxes. The depth of shine is also noticeable. It makes the paint smooth with a deep shine, no matter the color or if its metallic or not. It just looks great. Bonus - it even smells great! I was so impressed I ordered a few more of their products and we'll be testing those shortly. For years I've bought and tried almost everything at stores and car shows and nothing impressed me. Black Light impresses me so much I'll be using it exclusively from now on. It's really that good.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2019
K
Verified Purchase
K9YarYar
Lexington, US
★★★★★ 5
AMAZING!
I have tried a lot of products and always looking for the next great purchase to keep my 2000 Boxster (black in color) looking its best. Just finally used it and I am IMPRESSED! This stuff goes on easily. You use very little product and it cleans off easily. Leave an AMAZING shine and really makes the black look deep. I am vey happy with this product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2026

recommand products

2025 SILVERBACK SE:SERIES V 27.5"
269.06
SRAM RED E1 AXS 2X Groupset Components
75.81
Ecryme: Conductor's Manual OSGEC1001
36.99
Yukon Gear Heavy Duty Driveshaft for 07-11 Jeep JK Rear 4-Door A/T Only
341.94
D&D 5E: Journey to Ragnarok: Echoes of Doom MPS10039
39.99