Minimum Battery System Capacity
Battery charge and discharge rates are managed automatically by the Discover Lithium Battery and Victron Energy device. Using large solar arrays with battery banks that are too small can exceed the operating limits of the battery to charge and possibly lead to the BMS triggering over-current protection. Either curtail the charging below the operational limit of installed batteries, or the battery capacity must accept the maximum charge current of the system. Derive this value by adding the charge capacities of all inverter-chargers and solar charge controllers in the system. Additionally, battery peak capacity must support the surge requirements demanded by the load attached to the inverter. Match all inverter peak power values with the sum of all battery peak battery current values.
Inverter Peak Amps DC = (Inverter Surge W) / (Inverter Efficiency) / (48V: Low Battery Cut-Off)
Discharge Continuous Amps DC = (Inverter Continuous W) / (Inverter Efficiency) / (48V: Low Battery Cut-Off)
120 V Models | Inverter Peak Amps DC | Discharge Continuous Max Amps DC | Charge Continuous Max Amps DC | AES RACKMOUNT Minimum per inverter (7) | HELIOS ESS 52-48-16000 Minimum per inverter (8) |
|---|---|---|---|---|---|
Quattro 48/3000/35 (1) | 133 | 54 | 35 | 1 | 1 |
Quattro 48/5000/70 (2) | 220 | 88 | 70 | 1 (3) | 1 |
Quattro 48/10000/140 (4) | 434 | 174 | 140 | 2 (3) | 2 |
MultiPlus-II 48/3000/35 (5) | 121 | 53 | 35 | 1 | 1 |
MultiPlus-II 48/5000/70 (6) | 195 | 87 | 70 | 1 | 1 |
(1) Calculated based on max 6000W at 120 VAC peak output, 2400W at 120VAC continuous output, efficiency 94.0 %, and 35A DC max charging, as published in Victron Data Sheet as of 24-05-01.
(2) Calculated based on max 10000W at 120 VAC peak output, 4000W at 120VAC continuous output, efficiency 95.0 %, and 70A DC max charging, as published in Victron Data Sheet as of 24-05-01.
(3) Depending on the application, another battery may be required as the battery peak and inverter peak values are on the edge.
(4) Calculated based on max 20000W at 120 VAC peak output, 8000W at 120VAC continuous output, efficiency 96.0 %, and 70A DC max charging, as published in Victron Data Sheet as of 24-05-01.
(5) Calculated based on max 5500W at 120 VAC peak output, 2400W at 120VAC continuous output, efficiency 95.0 %, and 35A DC max charging, as published in Victron Data Sheet as of 24-05-01.
(6) Calculated based on max 9000W at 120 VAC peak output, 4000W at 120VAC continuous output, efficiency 96.0 %, and 70A DC max charging, as published in Victron Data Sheet as of 24-05-01.
(7) Discover AES RACKMOUNT 48-48-5120/48-48-5120-H Battery, Peak Power: 218 A RMS (3 seconds), 200 A DC Continuous Charge/Discharge, as published in Discover HELIOS ESS AES RACKMOUNT Installation and Operation Manual (805-0043 Rev J).
(8) Discover HELIOS ESS 52-48-16000 Battery, Peak Power: 300 A RMS (15 seconds), 200 A DC Continuous Charge/Discharge, as published in Discover HELIOS ESS Installation and Operation Manual (805-0090 Rev D).
Inverter Peak Amps DC = (Inverter Surge W) / (Inverter Efficiency) / (48V: Low Battery Cut-Off)
Discharge Continuous Amps DC = (Inverter Continuous W) / (Inverter Efficiency) / (48V: Low Battery Cut-Off)
230 V Models | Inverter Peak Amps DC | Discharge Continuous Max Amps DC | Charge Continuous Max Amps DC | AES RACKMOUNT Minimum per inverter (17) | HELIOS ESS 52-48-16000 Minimum per inverter (18) |
|---|---|---|---|---|---|
Quattro 48/5000/70 (1) | 220 | 88 | 70 | 1 | 1 |
Quattro 48/8000/110 (2) | 347 | 139 | 110 | 2 | 2 |
Quattro 48/10000/140 (3) | 434 | 174 | 140 | 2 | 2 |
Quattro 48/15000/200 (4) | 542 | 260 | 200 | 3 | 2 |
Quattro-II 48/5000/70 (5) | 195 | 87 | 70 | 1 | 1 |
MultiPlus 48/2000/25 (6) | 77 | 35 | 25 | 1 | 1 |
MultiPlus 48/3000/35 (7) | 132 | 53 | 35 | 1 | 1 |
MultiPlus 48/5000/70 (8) | 219 | 88 | 70 | 1 | 1 |
MultiPlus-II (GX) 48/3000/35 (9) | 121 | 53 | 35 | 1 | 1 |
MultiPlus-II (GX) 48/5000/70 (10) | 195 | 87 | 70 | 1 | 1 |
MultiPlus-II 48/8000/110 (11) | 329 | 140 | 110 | 2 | 2 |
MultiPlus-II 48/10000/140 (12) | 391 | 174 | 140 | 2 | 2 |
MultiPlus-II 48/15000/200 (13) | 592 | 263 | 200 | 3 | 2 |
Multi RS Solar 48/6000 Dual Tracker (14) | 199 | 117 | 100 | 2 | 1 |
EasySolar-II 48/3000/35 MPPT 250/70 GX (15) | 121 | 53 | 35 | 1 | 1 |
EasySolar-II 48/5000/70 MPPT 250/100 GX (16) | 195 | 87 | 70 | 1 | 1 |
(1) Calculated based on max 10000W at 230 VAC peak output, 4000W at 230VAC continuous output, efficiency 95.0 %, and 70A DC max charging, as published in Victron Data Sheet as of 24-05-01.
(2) Calculated based on max 16000W at 230 VAC peak output, 6400W at 230VAC continuous output, efficiency 96.0 %, and 110A DC max charging, as published in Victron Data Sheet as of 24-05-01.
(3) Calculated based on max 20000W at 230 VAC peak output, 8000W at 230VAC continuous output, efficiency 96.0 %, and 140A DC max charging, as published in Victron Data Sheet as of 24-05-01.
(4) Calculated based on max 25000W at 230 VAC peak output, 12000W at 230VAC continuous output, efficiency 96.0 %, and 200A DC max charging, as published in Victron Data Sheet as of 24-05-01.
(5) Calculated based on max 9000W at 230 VAC peak output, 4000W at 230VAC continuous output, efficiency 96.0 %, and 70A DC max charging, as published in Victron Data Sheet as of 24-05-01.
(6) Calculated based on max 3500W at 230 VAC peak output, 1600W at 230VAC continuous output, efficiency 95.0 %, and 25A DC max charging, as published in Victron Data Sheet as of 24-05-01.
(7) Calculated based on max 6000W at 230 VAC peak output, 2400W at 230VAC continuous output, efficiency 95.0 %, and 25A DC max charging, as published in Victron Data Sheet as of 24-05-01.
(8) Calculated based on max 10000W at 230 VAC peak output, 4000W at 230VAC continuous output, efficiency 95.0 %, and 25A DC max charging, as published in Victron Data Sheet as of 24-05-01.
(9) Calculated based on max 5500W at 230 VAC peak output, 2400W at 230VAC continuous output, efficiency 95.0 %, and 35A DC max charging, as published in Victron Data Sheet as of 24-05-01.
(10) Calculated based on max 9000W at 230 VAC peak output, 4000W at 230VAC continuous output, efficiency 96.0 %, and 70A DC max charging, as published in Victron Data Sheet as of 24-05-01.
(11) Calculated based on max 15000W at 230 VAC peak output, 6400W at 230VAC continuous output, efficiency 95.0 %, and 110A DC max charging, as published in Victron Data Sheet as of 24-05-01.
(12) Calculated based on max 18000W at 230 VAC peak output, 8000W at 230VAC continuous output, efficiency 96.0 %, and 35A DC max charging, as published in Victron Data Sheet as of 24-05-01.
(13) Calculated based on max 27000W at 230 VAC peak output, 12000W at 230VAC continuous output, efficiency 95.0 %, and 35A DC max charging, as published in Victron Data Sheet as of 24-05-01.
(14) Calculated based on max 9000W at 230 VAC peak output, 5300W at 230VAC continuous output, efficiency 94.0 %, and 100A DC max charging, as published in Victron Data Sheet as of 24-05-01.
(15) Calculated based on max 5500W at 230 VAC peak output, 2400W at 230VAC continuous output, efficiency 95.0 %, and 100A DC max charging, as published in Victron Data Sheet as of 24-05-01.
(16) Calculated based on max 9000W at 230 VAC peak output, 4000W at 230VAC continuous output, efficiency 96.0 %, and 100A DC max charging, as published in Victron Data Sheet as of 24-05-01.
(17) Discover AES RACKMOUNT 48-48-5120/48-48-5120-H Battery, Peak Power: 218 A RMS (3 seconds), 200 A DC Continuous Charge/Discharge, as published in Discover HELIOS ESS AES RACKMOUNT Installation and Operation Manual (805-0043 Rev J).
(18) Discover HELIOS ESS 52-48-16000 Battery, Peak Power: 300 A RMS (15 seconds), 200 A DC Continuous Charge/Discharge, as published in Discover HELIOS ESS Installation and Operation Manual (805-0090 Rev D).
Inverter Peak Amps DC = (Inverter Surge W) / (Inverter Efficiency) / (48V: Low Battery Cut-Off)
Discharge Continuous Amps DC = (Inverter Continuous W) / (Inverter Efficiency) / (48V: Low Battery Cut-Off)
277 V Model | Inverter Peak Amps DC | Discharge Continuous Max Amps DC | Charge Continuous Max Amps DC | AES RACKMOUNT Minimum per inverter (2) | HELIOS ESS 52-48-16000 Minimum per inverter (3) |
|---|---|---|---|---|---|
Quattro 48/15000/200 (1) | 542 | 260 | 200 | 3 | 2 |
(1) Calculated based on max 25000W at 277 VAC peak output, 12000W at 277VAC continuous output, efficiency 96.0 %, and 200A DC max charging, as published in Victron Data Sheet as of 24-05-01.
(2) Discover AES RACKMOUNT 48-48-5120/48-48-5120-H Battery, Peak Power: 218 A RMS (3 seconds), 200 A DC Continuous Charge/Discharge, as published in Discover HELIOS ESS AES RACKMOUNT Installation and Operation Manual (805-0043 Rev J).
(3) Discover HELIOS ESS 52-48-16000 Battery, Peak Power: 300 A RMS (15 seconds), 200 A DC Continuous Charge/Discharge, as published in Discover HELIOS ESS Installation and Operation Manual (805-0090 Rev D).