Batteries

Enphase IQ Battery 5P vs Enphase IQ Battery 10C

Side-by-side comparison based on specs, real pricing, and our crew's installation experience. Updated for 2026.

Enphase

8.5

Choose Enphase IQ Battery 5P if:

Homes with Enphase microinverter systems
Modular expansion (stack multiple 5 kWh units)
Essential load backup on a budget
Long warranty peace of mind

$8,500 installed

9.5

Choose Enphase IQ Battery 10C if:

Best overall battery for Enphase solar systems
10 kWh in a compact form factor (62% less space per kWh than 5P)
Homeowners who want high power with Enphase ecosystem
Gen4 technology with highest cycle count warranty

$13,000 installed

Spec-by-Spec Comparison

Specification

Enphase IQ Battery 5P

Enphase IQ Battery 10C

Price

$8,500 installed

$13,000 installed

Warranty

15 years

Usable Capacity

5 kWh

10 kWh

Continuous Power

3.84 kW

7.08 kW

Peak Power

7.68 kW (10 sec)

14.16 kW (10 sec)

Round-trip Efficiency

96% DC / 90% AC

Chemistry

LFP (Lithium Iron Phosphate)

Weight

185 lbs (84 kg)

310 lbs (141 kg)

Dimensions

26.1 x 42.0 x 12.6 in

32.0 x 42.0 x 12.6 in

Operating Temp

-15°C to 55°C

Connectivity

Enphase Envoy + Wi-Fi

NuWatt Rating

8.5/10

9.5/10

Pros & Cons

Enphase IQ Battery 5P

Pros

+96% DC round-trip efficiency — best in class
+15-year warranty — tied for longest available
+Modular: add units as needs grow (up to 16 per system = 80 kWh)
+Seamless Enphase app monitoring with IQ microinverters
+No single point of failure (distributed architecture)
+LFP chemistry — safest battery technology

Cons

-Only 5 kWh per unit — need multiples for whole-home backup
-$1,700/kWh — highest cost per kWh in our lineup
-Requires Enphase IQ System Controller for backup
-3.84 kW continuous — limited power per unit

Enphase IQ Battery 10C

Pros

+10 kWh in a single compact unit — double the 5P capacity
+7.08 kW continuous power — enough for most essential loads
+6,000-cycle guarantee — 50% more cycles than the 5P
+15-year warranty — tied for longest in lineup
+62% less wall space per kWh than the 5P
+Gen4 architecture with improved thermal management

Cons

-$1,300/kWh — still premium pricing vs Tesla or Franklin
-Brand new (mid-2025) — less field history than 5P
-Requires Enphase IQ System Controller for backup
-Cannot mix with 5P units on the same system

Installation Notes from Our Crew

Enphase IQ Battery 5P

Our crew mounts the IQ 5P on a garage or basement wall in about 3 hours per unit. It pairs directly with the Enphase IQ System Controller — no separate gateway needed. We typically recommend 2-3 units for essential load backup or 4+ for near whole-home coverage. The modular approach means you can start small and add units later without rewiring.

Enphase IQ Battery 10C

The IQ 10C is Enphase's Gen4 flagship battery. It's heavier than the 5P (310 lbs vs 185 lbs), so we bring a two-person crew. The install is similar to the 5P — wall-mount, connect to IQ System Controller, configure via Enphase app. The 7 kW continuous power is enough to back up essential loads plus a mini-split AC. For whole-home backup, we recommend two 10C units.

Frequently Asked Questions

Is the Enphase IQ Battery 5P or Enphase IQ Battery 10C better?

The Enphase IQ Battery 10C scores 9.5/10 vs 8.5/10 in our rating. It excels at: best overall battery for enphase solar systems. The Enphase IQ Battery 5P is the better choice if: homes with enphase microinverter systems. The right pick depends on your specific situation.

How much does the Enphase IQ Battery 5P cost vs the Enphase IQ Battery 10C?

The Enphase IQ Battery 5P costs $8,500 installed. The Enphase IQ Battery 10C costs $13,000 installed. Both prices include professional installation by NuWatt Energy. State incentives may reduce your net cost — use our calculator for exact pricing.

Which has a better warranty?

The Enphase IQ Battery 5P has a 15-year warranty (15-year product & performance warranty with 4,000-cycle guarantee). The Enphase IQ Battery 10C has a 15-year warranty (15-year product & performance warranty with 6,000-cycle guarantee). Both offer the same warranty length.

Does NuWatt install both the Enphase IQ Battery 5P and Enphase IQ Battery 10C?

Yes. NuWatt Energy installs both products and our crew has hands-on experience with each. We can help you choose based on your home, energy goals, and budget during a free consultation.

Can I switch from Enphase to Enphase later?

In most cases, yes. Batteries can be added to or replaced in existing solar systems. The main consideration is inverter compatibility and electrical panel capacity. Contact NuWatt for a specific assessment of your system.

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Spec-by-Spec Comparison

Specification

Enphase IQ Battery 5P

Enphase IQ Battery 10C

Price

$8,500 installed

$13,000 installed

Warranty

15 years

Usable Capacity

5 kWh

10 kWh

Continuous Power

3.84 kW

7.08 kW

Peak Power

7.68 kW (10 sec)

14.16 kW (10 sec)

Round-trip Efficiency

96% DC / 90% AC

Chemistry

LFP (Lithium Iron Phosphate)

Weight

185 lbs (84 kg)

310 lbs (141 kg)

Dimensions

26.1 x 42.0 x 12.6 in

32.0 x 42.0 x 12.6 in

Operating Temp

-15°C to 55°C

Connectivity

Enphase Envoy + Wi-Fi

NuWatt Rating

8.5/10

9.5/10

Pros & Cons

Enphase IQ Battery 5P

Pros

+96% DC round-trip efficiency — best in class
+15-year warranty — tied for longest available
+Modular: add units as needs grow (up to 16 per system = 80 kWh)
+Seamless Enphase app monitoring with IQ microinverters
+No single point of failure (distributed architecture)
+LFP chemistry — safest battery technology

Cons

-Only 5 kWh per unit — need multiples for whole-home backup
-$1,700/kWh — highest cost per kWh in our lineup
-Requires Enphase IQ System Controller for backup
-3.84 kW continuous — limited power per unit

Enphase IQ Battery 10C

Pros

+10 kWh in a single compact unit — double the 5P capacity
+7.08 kW continuous power — enough for most essential loads
+6,000-cycle guarantee — 50% more cycles than the 5P
+15-year warranty — tied for longest in lineup
+62% less wall space per kWh than the 5P
+Gen4 architecture with improved thermal management

Cons

-$1,300/kWh — still premium pricing vs Tesla or Franklin
-Brand new (mid-2025) — less field history than 5P
-Requires Enphase IQ System Controller for backup
-Cannot mix with 5P units on the same system

Installation Notes from Our Crew

Enphase IQ Battery 5P

Enphase IQ Battery 10C

Frequently Asked Questions

Is the Enphase IQ Battery 5P or Enphase IQ Battery 10C better?

How much does the Enphase IQ Battery 5P cost vs the Enphase IQ Battery 10C?

Which has a better warranty?

Does NuWatt install both the Enphase IQ Battery 5P and Enphase IQ Battery 10C?

Yes. NuWatt Energy installs both products and our crew has hands-on experience with each. We can help you choose based on your home, energy goals, and budget during a free consultation.

Can I switch from Enphase to Enphase later?

Update Location

Enphase IQ Battery 5P vs Enphase IQ Battery 10C

Choose Enphase IQ Battery 5P if:

Choose Enphase IQ Battery 10C if:

Spec-by-Spec Comparison

Pros & Cons

Enphase IQ Battery 5P

Pros

Cons

Enphase IQ Battery 10C

Pros

Cons

Installation Notes from Our Crew

Enphase IQ Battery 5P

Enphase IQ Battery 10C

Frequently Asked Questions

Related Comparisons

Not Sure Which to Choose?

Enphase IQ Battery 5P vs Enphase IQ Battery 10C

Choose Enphase IQ Battery 5P if:

Choose Enphase IQ Battery 10C if:

Spec-by-Spec Comparison

Pros & Cons

Enphase IQ Battery 5P

Pros

Cons

Enphase IQ Battery 10C

Pros

Cons

Installation Notes from Our Crew

Enphase IQ Battery 5P

Enphase IQ Battery 10C

Frequently Asked Questions

Related Comparisons

Not Sure Which to Choose?