The Solar Step
5.12kWh Ecco Lithium Battery 51.2V 100AH W51100 Wall-Mount
5.12kWh Ecco Lithium Battery 51.2V 100AH W51100 Wall-Mount
Please note that the stock quantities displayed are for our warehouse. Please confirm stock on hand directly with us before collecting your order.
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Lithium Battery (Ecco 51.2V 100Ah 5.12kWh W51100 – Wall-Mounted)
Please note that stock is kept in warehouse
Key Features:
Wall-mounted design – easy to install and aesthetically pleasing
Lithium Iron Phosphate (LiFePO4) cells – safe, long life cycle
Max 1C charge/discharge rate
User-friendly interface
Compatible with multiple inverter brands
Supports up to 16 parallel groups
Compliant with North American UL & EU TUV standards
Advantages:
Longer Cycle Life: Up to 20× longer cycle life and 5× longer float/calendar life than lead-acid batteries
Lighter Weight: ~40% of the weight of comparable lead-acid batteries
Higher Power: 2× the power of lead-acid batteries while maintaining high energy capacity
Wider Temperature Range: -20°C to 60°C
Superior Safety: Eliminates risk of explosion or combustion from impact, overcharging, or short circuits
What’s in the Box?
Battery
Battery Cables & Mounts
Battery Parameters:
Battery Type: Set to “USE”
Bulk Charge Voltage: 56.4-56.6V
Float Charge Voltage: 54V
Cut-off Voltage: 47V
Technical Specifications:
Nominal Voltage: 51.2V
Nominal Capacity: 100Ah
Total Power: 5.12kWh
Best Operating Voltage Range: 43V - 54.5V
Short Circuit Protection: Yes
Power-on Reverse Connection Protection: Optional
Max Charging Voltage: 57.6V
Best Charging Voltage: 56.4V (Recommended)
Max Continuous Output Power: 5500W
Max Momentary Output Power: 7500W
Local Parameter Configuration: Supported
Max Installation Dimensions (mm): 480 × 170 × 500
Package Size (mm): 590 × 290 × 615
Weight: 49kg
IP Class: IP54
Communication: RS485, RS232, CAN
Design Life: 15 years
Battery:
-
- Voltage: 48V
- Max Discharge Current: 220A
- Floating Charge Voltage: 54VDC
- Overcharge Protection: 63VDC
- Charging Method: CC/CV
Installation must be performed by a qualified electrical wireman or Master Electrician with valid registration with the Department of Labour.
A valid Electrical Certificate of Compliance (COC) must be issued after installation, specific to the backup or solar system.
Installation must comply with SANS 10142 and all its parts.
Warranty claims must include:
-
- Installation photos
- Valid COC
- Proof of installation by a qualified wireman or Master Electrician
- Failure to provide the above may void the warranty.
Let customers speak for us
from 167 reviewsI will always prefer solar step, I have ordered solar and they have arrived quickly and they’re working properly. I will always recommend solar step to everyone and hoping to call again soon
Great service. The product itself is quite fancy with lots of options to select. I am very impressed. Money well spent
I must admit I was very nervous buying online again after a 3 month battle with Solar Butler. But you have restored my faith in online shopping your service was very efficient and dilivery was before the said date. Great job guys.
Working great on my inverter. Will recommend it to anyone that is struggling with the same brand inverter. Fast delivery also
I just want to say your service is very very good and your priceing thank you very much
Exited to have received my battery. Will be installing it Today. Never go wrong The Solar Step, reliable and have good customer services
10/10 service assistance. Both on call and via WhatsApp. Professional and efficient.
+ Products delivered on time . Special thanks to Keishendra .
Very happy with the amazing service offered by Solar Step .
Keep it up . And may your business prosper tenfold 🎉
Best service ever, I got my ME51100SE delivered so quick, thank you for your service
Very happy about the service received
Service was fast and efficient. Battery arrived within two days of placing the order.
Thus was just an oder to replace the battery in my inverter, but I was impressed enough that I would use them again when the need arises.
Best service ever, fast delivery. Technically supportive, am extremely happy with the service and the product.
I write reviews on every product I buy. The GenXair 24000btu is more than what they could described.
It's an excellent unit delivering above expectations.
How long it will last and the aftersales service we will see in time.
First impressions is above average.
A must have for every DBboard
Great innovation
Great products
Still waiting for the power to trip. I know its a weird ask, but would like to test the system and see what it has to offer.

Exited to have received my battery. Will be installing it Today. Never go wrong The Solar Step, reliable and have good customer services
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