48V storage
A 48V battery bank must match the inverter and the loads.
Rated energy is only the first check. Confirm usable energy, continuous and surge current, charge settings, protection, and the loads that need backup.
Direct answer
One 51.2 V, 100 Ah rack battery stores 5.12 kWh nominal and about 4.61 kWh at 90% usable depth. Do not pair it with an inverter until BMS current, parallel limits, communications, and protection are confirmed.
Before the hardware
Collect these four inputs.
- 01Critical loads
- 02Inverter rating
- 03BMS current
- 04Charge settings
Worked example
One 48 V rack module
Assumptions
- 51.2 V nominal battery
- 100 Ah rated capacity
- 90% usable depth for preliminary comparison
- Inverter and communications compatibility unresolved
Calculation
- 51.2 V × 100 Ah = 5,120 Wh nominal
- 5,120 Wh × 0.90 = 4,608 Wh preliminary usable energy
Result:5.12 kWh nominal and 4.61 kWh preliminary usable energy per module.
Sources and assumptions (2)
- Enerwav sizing rules reviewed on 2026-07-22.
- Product records and specifications are checked again at quote.
Build tiers
Compare the hardware and see what still needs checking.
No price is public. Every item uses Dixon web price times 1.0 as the internal basis and must be repriced before publication.
Battery and protection
A component set for buyers who already have a compatible inverter design.
| Qty | Product | Key spec | Note |
|---|---|---|---|
| 1 | NLI-51.2-100RUL batteryNLI-51.2-100RUL | 51.2 V, 100 Ah, UL listing in source | BMS and communications still need confirmation |
| 1 | N-4X-RACK or N-8X-RACK | Rack selection | Contents must be confirmed |
| 1 | DC protection set | MNEDC250, MNDC250, MNSPD-300-DC | Final rating follows the inverter design |
| A wiring diagram PDF is included after protection, cable, and compatibility checks. | |||
Capacity review
Held until NITRO parallel count, BMS current, and communications limits are documented.
| Qty | Product | Key spec | Note |
|---|---|---|---|
| 1 | Parallel design review | Parallel module count not confirmed | No extra battery is included without the missing limits |
| A wiring diagram PDF is included after protection, cable, and compatibility checks. | |||
Complete storage system
Held until a compatible 48 V inverter charger is present in the supplier feed.
| Qty | Product | Key spec | Note |
|---|---|---|---|
| 1 | 48 V inverter charger | Model not available | Supplier feed does not include this item |
| 1 | Communications package | CAN or RS485 to be confirmed | No compatibility claim is published |
| A wiring diagram PDF is included after protection, cable, and compatibility checks. | |||
What makes it work
Three choices that need to be checked together.
Rack batteries
Compare nominal and usable energy, BMS current, parallel limit, and listings.
View the categoryDC protection
Breakers, disconnects, surge protection, cable, and lugs follow fault current and inverter design.
View the categoryInverter compatibility
Voltage alone is not compatibility. Charge settings, BMS current, and communications must match.
View the categoryA home-storage battery supports long energy shifting. Electronics that need instantaneous transfer use rackmount lithium UPS systems, which are a different product and protection category.
Help around the hardware
A product record does not replace a system review.
Free sizing review
A load worksheet review with the assumptions, missing inputs, and a hardware direction.
See all servicesCustom battery bank assembly
Series or parallel configuration with cables cut, crimped, and labelled after compatibility review.
See all servicesKeep checking
The method and terms used here.
Read the sizing method
See the assumptions, suppression rules, and evidence standard used here.
Read the guideCheck the energy glossary
Confirm the meaning of capacity, energy, current, and autonomy.
Read the guideHonest limits
Know before you buy
- Enerwav is not offering a complete 48 V home backup kit until a compatible inverter charger is in the feed.
- BMS continuous current, parallel count, and CAN or RS485 compatibility remain unconfirmed.
- A rack battery does not make an existing inverter compatible.
Common questions
Short answers, limits included.
How much energy is in one 51.2 V 100 Ah battery?
The nominal value is 5.12 kWh. A 90% screening depth gives about 4.61 kWh before system losses.
Can I connect it to any 48 V inverter?
No. Charge settings, BMS current, communications, protection, and the manufacturer's compatibility rules must match.
Can modules be placed in parallel?
The source has not yet confirmed the allowed parallel count or protection method, so no count is published.
Is this a whole-home backup kit?
No. It is a battery and balance-of-system component lane until a compatible inverter charger is available and verified.