--- title: "Dyness Tower Pro TP19 vs Deye GB-L20 - Battery Comparison | ComparePV" description: "Compare Dyness Tower Pro TP19 vs Deye GB-L20 side by side: shop prices, usable energy, round-trip efficiency, power, cycle life and the full specification." source: "https://comparepv.com/compare-batteries/dyness-tower-pro-tp19/gb-l20" updated: 2026-01-11 --- # Dyness Tower Pro TP19 vs Deye GB-L20 16 differences, and they point both ways The largest is usable energy: 0.16 kWh apart. 6 of 22 comparable parameters are identical, with 11 more left out because at least one datasheet does not publish them. ## The two batteries | Attribute | A | B | | --- | --- | --- | | Battery | [Dyness Tower Pro TP19](https://comparepv.com/battery/dyness-tower-pro-tp19) | [Deye GB-L20](https://comparepv.com/battery/gb-l20) | | Manufacturer | Dyness | Deye | | Usable energy | 18.24 kWh | 18.4 kWh | | Cells and voltage | LFP HV | LFP HV | ## Price offers | Shop | Country | Tower Pro TP19 | GB-L20 | | --- | --- | --- | --- | | Sklep Soltech | Poland | 15 806.56 zł | | [See 20 Dyness offers](https://comparepv.com/offers?manufacturer=dyness&product_type=battery) [See 44 Deye offers](https://comparepv.com/offers?manufacturer=deye&product_type=battery) ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | Tower Pro TP19 | GB-L20 | Difference | | --- | --- | --- | --- | | Usable energy | 18.24 kWh | 18.40 kWh | 0.16 kWh apart | | Continuous discharge power | 19.20 kW | 20.48 kW | +1.28 kW for GB-L20 | | Cycle life | 8000 cycles | 6000 cycles | +2000 cycles for Tower Pro TP19 | | Warranty | 15 yrs | 10 yrs | +5 yrs for Tower Pro TP19 | | Max system capacity | 23.0 kWh | 24.5 kWh | +1.5 kWh for GB-L20 | | Nominal energy | 19.20 kWh | 20.45 kWh | 1.25 kWh apart | | Depth of discharge | 95 % | 90 % | +5 pp for Tower Pro TP19 | | Continuous charge power | 19.20 kW | 20.48 kW | +1.28 kW for GB-L20 | | Nominal voltage | 480 V | 512 V | 32 V apart | | Weight | 206.0 kg | 214.0 kg | -8.0 kg for Tower Pro TP19 | | Max operating temperature | 55 °C | 60 °C | +5 °C for GB-L20 | | Ingress protection | IP55 | IP65 | IP55 vs IP65 | | Power per kWh | 1.05 kW/kWh | 1.11 kW/kWh | +0.06 kW/kWh for GB-L20 | | Weight per kWh | 11.3 kg/kWh | 11.6 kg/kWh | -0.3 kg/kWh for Tower Pro TP19 | | Operating voltage | 420-547 V | 166.4-700 V | 420-547 V vs 166.4-700 V | | Dimensions | 1451x587x310 mm | 1310x540x385 mm | 1451x587x310 mm vs 1310x540x385 mm | ## Every compared parameter | Parameter | Tower Pro TP19 | GB-L20 | | --- | --- | --- | | Usable energy | 18.24 kWh | 18.40 kWh | | Nominal energy | 19.20 kWh | 20.45 kWh | | Depth of discharge | 95 % | 90 % | | Max system capacity | 23.0 kWh | 24.5 kWh | | Modules per stack | 2-6 | 2-6 | | Continuous discharge power | 19.20 kW | 20.48 kW | | Continuous charge power | 19.20 kW | 20.48 kW | | Peak discharge power | - | 25.60 kW | | Power per kWh | 1.05 kW/kWh | 1.11 kW/kWh | | Round-trip efficiency | 95.0 % | - | | Cycle life | 8000 cycles | 6000 cycles | | Cycle test depth | 95 % | - | | Capacity at end of life | - | 70 % | | Self-discharge | - | - | | Voltage class | High voltage | High voltage | | Nominal voltage | 480 V | 512 V | | Operating voltage | 420-547 V | 166.4-700 V | | Cell chemistry | LFP | LFP | | Active cell balancing | - | - | | Thermal management | - | Yes | | Inverter | None (battery only) | None (battery only) | | Inverter power | - | - | | Grid connection | - | - | | Backup power | - | - | | Weight | 206.0 kg | 214.0 kg | | Weight per kWh | 11.3 kg/kWh | 11.6 kg/kWh | | Dimensions | 1451x587x310 mm | 1310x540x385 mm | | Ingress protection | IP55 | IP65 | | Outdoor-rated | Yes | Yes | | Min operating temperature | -20 °C | -20 °C | | Max operating temperature | 55 °C | 60 °C | | Warranty | 15 yrs | 10 yrs | | Warranted throughput | - | - | ## Related comparisons - [Dyness Tower Pro TP19 vs FoxESS ECS2900-H7](https://comparepv.com/compare-batteries/dyness-tower-pro-tp19/fox-ess-ecs2900-h7) - 13 differences, the largest is cycle life - [Dyness Tower Pro TP19 vs Deye GB-SL-EU (5 modules in series)](https://comparepv.com/compare-batteries/dyness-tower-pro-tp19/gb-sl-eu-5-modules-in-series) - 15 differences, the largest is usable energy - [Dyness Tower Pro TP19 vs Solplanet Ai-HB 200A](https://comparepv.com/compare-batteries/dyness-tower-pro-tp19/solplanet-ai-hb-200a) - 17 differences, the largest is usable energy - [Deye GB-L20 vs Deye BOS-G20](https://comparepv.com/compare-batteries/gb-l20/bos-g20) - 9 differences, the largest is max system capacity --- Source: https://comparepv.com/compare-batteries/dyness-tower-pro-tp19/gb-l20 Not in this file, on the page: a written summary generated on request.