SKU: 20619439677

Simpliphi PHI 3.8 kWh 24V LFP Battery | PHI-3.8-24-60 | Off-Grid Lithium Solar Battery

$1205.96 $1339.95
Save 10%
No.2 Bestseller on watersyst.com >

Pay in installments of $334.99 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 14 - Aug 19

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Simpliphi PHI 3.8 kWh 24V LFP Battery | PHI-3.8-24-60 | Off-Grid Lithium Solar BatteryThe PHI 3. 8 kWh 60 Amp deep cycle Lithium Ferro Phosphate (LFP) battery is optimized with proprietary cell architecture, power electronics, BMS and assembly methods. It is modular, light weight and scalable for installations that range from kWh to MWh. Provides power security and seamless integration of renewable and traditional sources of energy in conjunction with or independent of the grid: net zero, peak shaving, emergency back up, portable and

The PHI 3.8™ kWh 60 Amp deep-cycle Lithium Ferro Phosphate (LFP) battery is optimized with proprietary cell architecture, power electronics, BMS and assembly methods. It is modular, light- weight and scalable for installations that range from kWh to MWh. Provides power security and seamless integration of renewable and traditional sources of energy in conjunction with or independent of the grid: net zero, peak shaving, emergency back-up, portable and mobile.

Simpliphi PHI 3.8 kWh LFP Battery, 24V Features:

  • Lithium Ferro Phosphate (LFP) The safest Lithium Ion chemistry available. No cobalt, risk of thermal runaway or fire
  • Built-in Battery Management System
  • Built-in SB50 Anderson Connector
  • Compatible with all industry standard inverters and charge controllers
  • Maintenance-free. No ventillation, cooling or thermal regulation required

Simpliphi PHI 3.8 kWh LFP Battery, 24V Specs:

  • Model: PHI 3.8kWh
  • 24 Volts DC
  • Nominal voltage: 25.6
  • Capacity: 151 Amp-hours
  • Rated Wh capacity at C/2: 3.8 kWh
  • Max. discharge current: 60 Amps for 10 minutes
  • Max. Continuous discharge current: 45 Amps
  • Depth of discharge: up to 100%
  • Cycle life: 10,000+
  • Built-in accessible 80 Amp DC breaker On/Off switch - increases safety and simplifies installations
  • 24V LFP batteries with proprietary architecture and Battery Management System (BMS)—do not require ventilation, cooling or thermal regulation
  • Compatible with all industry standard inverter/charge controllers
  • Drop in replacement for lead acid
  • LFP is the safest, most environmentally benign Lithium Ion chemistry available—no risk of thermal runaway or fire
  • No AC or toxic liquid cooling—negligible parasitic drain—long cycle life
  • Non-toxic and non-hazardous recyclable materials
  • Approved CA SGIP Advanced Energy Storage (AES) rebate program supplier
  • Meets transport safety weight requirements: Less than 35 kg including packaging
  • UN 3481, Lithium Ion battery contained in equipment, 9, II
  • UL and CE listed, UN/DOT and RoHS compliant components - UL Certified
  • Designed and built in California, USA
  • Dimensions: 13.5" x 14.0" x 8.0"
  • Weight: 78.24 lbs.
  • 10 year warranty
CHEMISTRY Lithium Ferro Phosphate (LFP)
The safest Lithium Ion chemistry available
No cobalt, risk of thermal runaway or fire
OCPD Built-in accessible 80 Amp DC breaker On/Off switch
BMS Built-in Battery Management System
COMPATIBILITY Compatible with all industry standard inverters and charge controllers
Battery bank-to-inverter output sizing must adhere to a 2:1 ratio:
battery quantity = (inverter kWAC rating ÷ inverter efficiency)
÷ battery MAX Continuous Discharge Rate in kWDC
MAINTENANCE Maintenance-free
No ventilation, cooling or thermal regulation required

Simpliphi PHI 3.8 kWh LFP Battery, 24V Technical Info:

SKU PHI-3.8-24-60
Weight 108.000000
Ah Rating 151
Battery Voltage 24
Dimensions (inchs) 13.5 x 14 x 8
Standard Warranty 10 years or 10,000 cycles @ 80% DOD
Manufacturer Simpliphi

Still have questions? Don't hesitate to reach out or give us a call today at 877-242-2792

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: 20619439677

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.9 ★★★★★
Based on 17 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
M
Verified Purchase
Matt
Lake Worth, US
★★★★★ 5
Good Stuff!! All low speed shudder is gone.
Size: 5 Quart Jug
I have a 2020 Nissan Altima SL 2.5l and Nissan is VERY specific about using ONLY NS3 transmission fluid. There are only a couple NS3 transmission fluid manufacturers...Nissan NS3 (Manufactured by Idemitsu), Idemitsu (a little cheaper than Nissan dealer), Triax, and Mannol (works good too). Seeing as Nissan is still using Jatco CVT transmissions which are known to be very troublesome, and very expensive to replace I wouldn't try any of the so-called "universal" transmission fluids just to save $50 and end up replacing a $6000 transmission. The Triax fluid seems to work very good in my car. I don't feel the shutter that I normally feel when driving slow and need to accelerate. The shudder is completely gone and operating smooth. The old fluid had 50k miles and it was very dirty but didn't smell burnt. I ended up doing 2 - 3 1/2 quart changes with 200 miles between the first and second change. I plan on doing another 3.5/4 quart change every 15k miles since there is no way to completely drain the 7.4 quarts of transmission fluid. The first change, only 3.5 quarts drained from the pan.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 19, 2025
B
Verified Purchase
Bcutshall
Birmingham, US
★★★★★ 5
Quality fluid for half cost in Mini CVT.
Size: 5 Quart Jug
Used in the cvt transmission in my 06 mini cooper. The fluid requirements recommended by BMW are met with this fluid. Fluid improved shifting and performance at half the cost of traditional BMW OEM fluid.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
J
Verified Purchase
JeanLafete
Grantham, US
★★★★★ 5
This CVT Fluid worked perfectly in a 2018 Chevrolet Spark.
Size: 5 Quart Jug
This fluid is fantastic. I bought a 2018 Chevrolet Spark with 30K miles and had a bad transmission shudder. Drained the transmission, cleaned-out the pan, and replaced the filters. Old fluid was black and this is a clear green. I loved the jug as it had a pop-up spout that was small and easy to pour, and the jug has a side handle. Transmission works great and the shudder is gone. I plan to change the filters and fluid again after 1K miles. This fluid is well worth the money!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 21, 2025
M
Verified Purchase
Miguel Cruz
Alexandria, US
★★★★★ 4
Wonderful
Size: 5 Quart Jug
Works great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 16, 2025
S
Verified Purchase
Susie Lou
Waukegan, US
★★★★★ 5
Great product
Size: 5 Quart Jug
Exactly what I needed. Great price! Fits well for my vehicle.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 24, 2026

recommand products

THOMAS SABO ANKH SIGN BEETLE BLK CZ SML
69.00
HD11010-3A
150.48
Feed end cap liner (IV)
83.72
To My Lovely Daughter, Always Believe In Yourself - Personalized Custom Jewelry Box With LED Mirror - FAM627_LEBOX
36.95
Thank You For Teaching Us, Cross and Book Design - Personalized Custom Circle Glass Ornament - FTH040_CGOR
20.95