---
title: "Deye SE-G5.1 Pro-B (EU, NA, AU) vs FelicityESS LUX-E-48100LG03 - Battery Comparison | ComparePV"
description: "Compare Deye SE-G5.1 Pro-B (EU, NA, AU) vs FelicityESS LUX-E-48100LG03 side by side: shop prices, usable energy, round-trip efficiency, power, cycle life and the full specification."
source: "https://comparepv.com/compare-batteries/deye-se-g5-1-pro-b-eu-na-au/felicityess-lux-e-48100lg03"
updated: 2026-01-10
---

# Deye SE-G5.1 Pro-B (EU, NA, AU) vs FelicityESS LUX-E-48100LG03

SE-G5.1 Pro-B (EU, NA, AU) leads on the differences that matter

The largest is usable energy: 0.26 kWh apart. 9 of 18 comparable parameters are identical, with 15 more left out because at least one datasheet does not publish them.


## The two batteries


| Attribute | A | B |
| --- | --- | --- |
| Battery | [Deye SE-G5.1 Pro-B (EU, NA, AU)](https://comparepv.com/battery/deye-se-g5-1-pro-b-eu-na-au) | [FelicityESS LUX-E-48100LG03](https://comparepv.com/battery/felicityess-lux-e-48100lg03) |
| Manufacturer | Deye | FelicityESS |
| Usable energy | 5.12 kWh | 4.86 kWh |
| Cells and voltage | LFP LV | LFP LV |


## Price offers


| Shop | Country | SE-G5.1 Pro-B (EU, NA, AU) | LUX-E-48100LG03 |
| --- | --- | --- | --- |
| Sklep Soltech | Poland | 2 956.80 zł |  |
| www.nejpanely.cz | Czechia | 20 000 Kč |  |
| eshop.jm-tech.sk | Slovakia | 690 € |  |
| livre.pt | Portugal | 756.99 € |  |
| lacasasolar.es | Spain | 919 € |  |
| Solaris Energy | Poland | 4 230 zł |  |
| mon-shopping-solaire.fr | France | 1 026 € |  |
| lifepo4oz.com | Australia | 2 299 A$ |  |
| solarbex.com | Spain | 1 005 € |  |

[See 44 Deye offers](https://comparepv.com/offers?manufacturer=deye&product_type=battery)

[See 1 FelicityESS offer](https://comparepv.com/offers?manufacturer=felicityess&product_type=battery)


## Where they differ

Ranked by how much the difference matters, not by datasheet order.


| Parameter | SE-G5.1 Pro-B (EU, NA, AU) | LUX-E-48100LG03 | Difference |
| --- | --- | --- | --- |
| Usable energy | 5.12 kWh | 4.86 kWh | 0.26 kWh apart |
| Max system capacity | 327.7 kWh | 72.9 kWh | +254.8 kWh for SE-G5.1 Pro-B (EU, NA, AU) |
| Depth of discharge | 90 % | 95 % | +5 pp for LUX-E-48100LG03 |
| Weight | 45.0 kg | 55.0 kg | -10.0 kg for SE-G5.1 Pro-B (EU, NA, AU) |
| Weight per kWh | 8.8 kg/kWh | 11.3 kg/kWh | -2.5 kg/kWh for SE-G5.1 Pro-B (EU, NA, AU) |
| Cycle test depth | 90 % | 80 % | 10 pp apart |
| Ingress protection | IP20 | IP21 | IP20 vs IP21 |
| Operating voltage | 43.2-57.6 V | 44.8-57.6 V | 43.2-57.6 V vs 44.8-57.6 V |
| Dimensions | 133x440x540 mm | 542x754x209 mm | 133x440x540 mm vs 542x754x209 mm |


## Every compared parameter


| Parameter | SE-G5.1 Pro-B (EU, NA, AU) | LUX-E-48100LG03 |
| --- | --- | --- |
| Usable energy | 5.12 kWh | 4.86 kWh |
| Nominal energy | 5.12 kWh | 5.12 kWh |
| Depth of discharge | 90 % | 95 % |
| Max system capacity | 327.7 kWh | 72.9 kWh |
| Modules per stack | - | - |
| Continuous discharge power | 5.12 kW | - |
| Continuous charge power | 5.12 kW | - |
| Peak discharge power | 7.68 kW | - |
| Power per kWh | 1.00 kW/kWh | - |
| Round-trip efficiency | - | - |
| Cycle life | 6000 cycles | 6000 cycles |
| Cycle test depth | 90 % | 80 % |
| Capacity at end of life | 70 % | - |
| Self-discharge | - | - |
| Voltage class | Low voltage | Low voltage |
| Nominal voltage | 51 V | 51 V |
| Operating voltage | 43.2-57.6 V | 44.8-57.6 V |
| Cell chemistry | LFP | LFP |
| Active cell balancing | - | - |
| Thermal management | - | - |
| Inverter | None (battery only) | None (battery only) |
| Inverter power | - | - |
| Grid connection | - | - |
| Backup power | - | - |
| Weight | 45.0 kg | 55.0 kg |
| Weight per kWh | 8.8 kg/kWh | 11.3 kg/kWh |
| Dimensions | 133x440x540 mm | 542x754x209 mm |
| Ingress protection | IP20 | IP21 |
| Outdoor-rated | - | - |
| Min operating temperature | -20 °C | -20 °C |
| Max operating temperature | 55 °C | 55 °C |
| Warranty | 10 yrs | 10 yrs |
| Warranted throughput | 16.0 MWh | - |


## Related comparisons

- [Deye SE-G5.1 Pro-B (EU, NA, AU) vs Deye RW-L5.1](https://comparepv.com/compare-batteries/deye-se-g5-1-pro-b-eu-na-au/rw-l5-1) - 5 differences, the largest is max system capacity
- [Deye SE-G5.1 Pro-B (EU, NA, AU) vs Deye SE-G 5.1](https://comparepv.com/compare-batteries/deye-se-g5-1-pro-b-eu-na-au/se-g-5-1) - 4 differences, the largest is continuous discharge power
- [Deye SE-G5.1 Pro-B (EU, NA, AU) vs Deye RW-F5.3-2H3](https://comparepv.com/compare-batteries/deye-se-g5-1-pro-b-eu-na-au/deye-rw-f5-3-2h3) - 12 differences, the largest is usable energy
- [FelicityESS LUX-E-48100LG03 vs Dyness DL5.0C](https://comparepv.com/compare-batteries/felicityess-lux-e-48100lg03/dyness-dl5-0c) - 8 differences, the largest is usable energy
- [FelicityESS LUX-E-48100LG03 vs SolarEdge BAT-05K48 (single module)](https://comparepv.com/compare-batteries/felicityess-lux-e-48100lg03/solaredge-bat-05k48-single-module) - 10 differences, the largest is usable energy


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Source: https://comparepv.com/compare-batteries/deye-se-g5-1-pro-b-eu-na-au/felicityess-lux-e-48100lg03

Not in this file, on the page: a written summary generated on request.