Alternator Regulator Product Comparison Matrix
for use with Lithium Battery banks
 |  |  |  | |
| X Engineering Xregulator | ARCO Zeus | Wakespeed WS500 Pro | Balmar MC-618-H | |
|---|---|---|---|---|
| Price | ||||
| Complete, apples to apples | $452 | $890 | $1,050 | $455 |
| Advertised price, mismatched | $390 | $846 | $649 | $360 |
| Compatibility | ||||
| System voltages | 12, 24, 36, 48 V | 12, 24, 36, 48 VThe regulator itself runs on 12–30 V, so a 48 V bank cannot power it directly. | 12, 24, 48 V | 12 V |
| Alternator type | P, N | P, N | P, N | P only |
| Connectivity | Wi-FiAny browser, plus iOS and Android apps. | BluetoothiOS and Android apps. | BluetoothiOS and Android apps. | A magnet$442 of extra hardware adds a Bluetooth app connection. |
| Native measurements | ||||
| Alternator current | Yes | Yes | Yes, or battery current — not both | No |
| Battery current | Yes | Yes | Yes, or alternator current — not both | No |
| Alternator temperature sensor | Digital | Thermistor | Thermistor | Thermistor |
| Battery temperature sensor | Digital | Thermistor | Thermistor | Thermistor |
| Protection | ||||
| Belt load manager | By amps, against engine RPM | By amps, against engine RPM | By amps, if the shunt is on the alternatorOtherwise open loop on field percentage. | By field percentageOpen loop, with no idea of engine RPM. |
| Alternator temperature control | Holds a target temperature | Holds a target temperature | Holds a target temperature | Pulls the field back above a threshold |
| Load dump reaction time | 100 ms | Not found | Design assumes two seconds of forewarning. | Not found |
| Limp home mode | Yes | Removed in 2025 | Yes | No |
| Alternator health trend | Yes | No | No | No |
| Alternator lifetime prediction | Yes | No | No | No |
| Battery charging | ||||
| “Target zero battery current” mode | Yes | No | Yes | No |
| Act as independent battery monitor | Yes | State of charge onlyWith the shunt fitted. | No | No |
| Solar mode | Yes | No | No | No |
| Guided setup | Commissioning wizard | App wizard | Plug-n-Go | No |
| Integration | ||||
| NMEA 2000 | Send and receive | Send and receive | Send and receive | No |
| Victron DVCC | In progress with VictronAugust 2026. | Yes | Yes | No |
| RV-C | Yes | Yes | Yes | No |
| The physical unit | ||||
| Dimensions | 6 × 4 × 1.3 in | 8.2 × 5.9 × 2.4 inWithout antenna. | 6.75 × 3.875 × 2.375 inFootprint 7.5 × 3.875 in over the mounting flanges. | 4.8 × 3.2 × 1.5 in |
| Moisture ingress | No IP ratingConformally coated board. Extra potting possible by installer, not included. Connectors not waterproof, must use dielectric grease and mount above waterline. | IP66 case, IP67 connectors | Designed for IP67Diecast enclosure version. | No IP ratingEpoxy potted on an aluminum heat sink, probably good |
| Accel and barometer on board | Yes | No | No | No |
| Data and updates | ||||
| Over-the-air updates | Yes | Yes | Yes | None published |
| Remote access from off the boat | Yes, through router | No | Yes, through a gateway | No |
| Opt-in Cloud database | Yes, free | Advertised fall 2026 | No | No |
| Save, load and share settings | Yes | Yes | Yes | No |
| Logging on the device itself | Extensive, ~ a month worth | None | None | A run-hours counter |
| Other | ||||
| Warranty | 2 years | 2 years | 2 years | 2 years |
| Source code published | YesGPLv3. | No | No | No |
| Schematics published | Yes | No | No | No |
Each price with a dotted underline opens the full parts breakdown behind it.
Prices retrieved September 2026. Wakespeed and Balmar pricing from PKYS, ARCO from ARCO, X Engineering from X Engineering.
NMEA 2000 drop cable and miscellaneous wiring terminals and accessories are not included.
Data is obtained by best effort; no guarantee of correctness. Send corrections to Joe@Xengineering.net.