---
title: "Deye GB-SL-EU (3 modules in series) vs Pylontech Force H1 (5 modules) - Battery Comparison | ComparePV"
description: "Compare Deye GB-SL-EU (3 modules in series) vs Pylontech Force H1 (5 modules) side by side: usable energy, round-trip efficiency, power, cycle life and the full specification."
source: "https://comparepv.com/compare-batteries/gb-sl-eu-3-modules-in-series/pylontech-force-h1-5-modules"
updated: 2026-01-11
---

# Deye GB-SL-EU (3 modules in series) vs Pylontech Force H1 (5 modules)

GB-SL-EU (3 modules in series) leads on the differences that matter

The largest is usable energy: 0.15 kWh apart. 2 of 13 comparable parameters are identical, with 20 more left out because at least one datasheet does not publish them.


## The two batteries


| Attribute | A | B |
| --- | --- | --- |
| Battery | [Deye GB-SL-EU (3 modules in series)](https://comparepv.com/battery/gb-sl-eu-3-modules-in-series) | [Pylontech Force H1 (5 modules)](https://comparepv.com/battery/pylontech-force-h1-5-modules) |
| Manufacturer | Deye | Pylontech |
| Usable energy | 11.04 kWh | 11.19 kWh |
| Cells and voltage | LFP HV | HV |

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

[See 102 Pylontech offers](https://comparepv.com/offers?manufacturer=pylontech&product_type=battery)


## Where they differ

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


| Parameter | GB-SL-EU (3 modules in series) | Force H1 (5 modules) | Difference |
| --- | --- | --- | --- |
| Usable energy | 11.04 kWh | 11.19 kWh | 0.15 kWh apart |
| Nominal voltage | 307 V | 240 V | 67 V apart |
| Weight | 176.0 kg | 259.0 kg | -83.0 kg for GB-SL-EU (3 modules in series) |
| Weight per kWh | 15.9 kg/kWh | 23.1 kg/kWh | -7.2 kg/kWh for GB-SL-EU (3 modules in series) |
| Min operating temperature | -20 °C | 0 °C | -20 °C for GB-SL-EU (3 modules in series) |
| Nominal energy | 12.27 kWh | 12.43 kWh | 0.16 kWh apart |
| Max operating temperature | 60 °C | 50 °C | +10 °C for GB-SL-EU (3 modules in series) |
| Inverter | Built in (all-in-one) | None (battery only) | Built in (all-in-one) vs None (battery only) |
| Ingress protection | IP65 | IP55 | IP65 vs IP55 |
| Modules per stack | 2-6 | 2-7 | 2-6 vs 2-7 |
| Dimensions | 1320x540x385 mm | 1380x600x380 mm | 1320x540x385 mm vs 1380x600x380 mm |


## Every compared parameter


| Parameter | GB-SL-EU (3 modules in series) | Force H1 (5 modules) |
| --- | --- | --- |
| Usable energy | 11.04 kWh | 11.19 kWh |
| Nominal energy | 12.27 kWh | 12.43 kWh |
| Depth of discharge | 90 % | 90 % |
| Max system capacity | 24.5 kWh | - |
| Modules per stack | 2-6 | 2-7 |
| Continuous discharge power | - | - |
| Continuous charge power | - | - |
| Peak discharge power | - | - |
| Power per kWh | - | - |
| Round-trip efficiency | - | - |
| Cycle life | 6000 cycles | - |
| Cycle test depth | 90 % | - |
| Capacity at end of life | 70 % | - |
| Self-discharge | - | - |
| Voltage class | High voltage | High voltage |
| Nominal voltage | 307 V | 240 V |
| Operating voltage | 179.2-691.2 V | - |
| Cell chemistry | LFP | - |
| Active cell balancing | - | - |
| Thermal management | Yes | - |
| Inverter | Built in (all-in-one) | None (battery only) |
| Inverter power | - | - |
| Grid connection | 3-phase | - |
| Backup power | - | - |
| Weight | 176.0 kg | 259.0 kg |
| Weight per kWh | 15.9 kg/kWh | 23.1 kg/kWh |
| Dimensions | 1320x540x385 mm | 1380x600x380 mm |
| Ingress protection | IP65 | IP55 |
| Outdoor-rated | - | Yes |
| Min operating temperature | -20 °C | 0 °C |
| Max operating temperature | 60 °C | 50 °C |
| Warranty | 10 yrs | - |
| Warranted throughput | - | - |


## Related comparisons

- [Deye GB-SL-EU (3 modules in series) vs BYD Battery-Box Premium HVM 11.0](https://comparepv.com/compare-batteries/gb-sl-eu-3-modules-in-series/byd-battery-box-premium-hvm-11-0) - 8 differences, the largest is max system capacity
- [Deye GB-SL-EU (3 modules in series) vs Deye GB-L12](https://comparepv.com/compare-batteries/gb-sl-eu-3-modules-in-series/gb-l12) - 5 differences, the largest is weight
- [Deye GB-SL-EU (3 modules in series) vs Dyness Tower Pro TP11](https://comparepv.com/compare-batteries/gb-sl-eu-3-modules-in-series/dyness-tower-pro-tp11) - 15 differences, the largest is cycle life
- [Pylontech Force H1 (5 modules) vs FoxESS ECS4300H-H3](https://comparepv.com/compare-batteries/pylontech-force-h1-5-modules/fox-ess-ecs4300h-h3) - 7 differences, the largest is nominal voltage


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Source: https://comparepv.com/compare-batteries/gb-sl-eu-3-modules-in-series/pylontech-force-h1-5-modules

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