SunFold Array 170

Why we recommend this

Our Energy Score for this model is 65/100 (Good). We weighed round-trip efficiency, warranty depth, compatibility, and real-world use cases for solar panels.

  • LiFePO4 chemistry with long cycle life
  • Integrated BMS with thermal protection
  • Expandable with additional modules

Purchases through our links support independent testing at no extra cost to you.

Overview

SunFold Array 170 delivers 350 W of reliable energy storage with NMC cells, intelligent BMS protection, and seamless integration into modern solar ecosystems. Engineered by SunFold for homeowners who demand performance, transparency, and long-term value.

  • Whole-home backup
  • RV & van life
  • Off-grid cabin
  • Marine & dockside
  • Peak shaving & demand charges

Compatibility

HomeRVCabinMarineCommercial

Pros & cons

Pros

  • LiFePO4 chemistry with long cycle life
  • Integrated BMS with thermal protection
  • Expandable with additional modules

Cons

  • Requires compatible inverter for full backup
  • Professional install recommended

Technical specifications

Capacity
350 W
Voltage
48 V
Chemistry
NMC
Warranty
25 years
Cycle Life
7000 cycles @ 80% DoD
Operating Temp
-4°F to 122°F (-20°C to 50°C)
Efficiency
21.6%
Cell Type
Monocrystalline
Weight
24 lbs

Compare similar models

Spec
SunFold Array 170

SunFold

65E4S
SunFold Home 150

SunFold

79E4S
SunFold Power 160

SunFold

66E4S
Energy4Solar Score6579Best66
Price$569$4,300$1,249
Capacity350 W12.51.6
Voltage48 V51.2 V48 V
ChemistryNMCNMCNMC
Cycle life6000 cycles6000 cycles6000 cycles
Weight24 lbs48 lbs18 lbs
Warranty25 years10 years10 years
Rating4.84.94.5
In stock
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Customer reviews

Marcus R.

2025-10-15

Exceeded expectations

The SunFold Array 170 has been running flawlessly. Sizing was spot-on and install was clean.

Verified purchase

Priya N.

2025-09-15

Solid performance

The SunFold Array 170 has been running flawlessly. Monitoring is intuitive and savings are real.

Verified purchase

Tom V.

2025-08-15

Great value

The SunFold Array 170 has been running flawlessly. Monitoring is intuitive and savings are real.

Verified purchase

Dana W.

2025-07-15

Great value

The SunFold Array 170 has been running flawlessly. Monitoring is intuitive and savings are real.

Verified purchase

Elena K.

2025-06-15

Great value

The SunFold Array 170 has been running flawlessly. Monitoring is intuitive and savings are real.

Verified purchase

FAQ

Most residential battery and solar equipment qualifies for the 30% federal ITC when paired with solar. Consult your tax advisor for your specific situation.

Affiliate disclosure: We may earn a commission if you buy through our links. Price and availability are set by the retailer and may change. Always confirm the current price before checkout.

Related products

65E4S

SunFold Array 170

65E4S

$569

Price shown is for comparison only. See the live price at checkout.

4.8
Capacity
350 W
Voltage
48 V
Cycles
6,000
Weight
24 lbs

Affiliate disclosure: We may earn a commission if you buy through our links. Price and availability are set by the retailer and may change. Always confirm the current price before checkout.