STERLING

Professional energy and charging technology for stationary and mobile applications
STERLING Power Products develops high-quality products for energy management of stationary and mobile units. The focus is on chargers, inverters, high-power regulators for alternators and other devices to optimize power supply. Thanks to its technically well-engineered and proven products, STERLING has become a well-known brand, especially in the world of water sports. For example, the engineers of STERLING Power Products developed waterproof chargers for use in completely exposed areas without protection (open boats or outdoors). Worth mentioning are the STERLING high-performance regulators, which practically turn a conventional alternator to a high-performance alternator with optimum IUoUo characteristics.

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Product image of STERLING Pro Charge Ultra 12V / 30A Charging Device
STERLING Pro Charge Ultra 12V / 30A Charging Device
only 399 12 €
(2)
In stock
Pro Charge Ultra 12V / 30A Charging DevicePreview image
Pro Charge Ultra 12V / 30A Charging DevicePreview image
Pro Charge Ultra 12V / 30A Charging DevicePreview image
Pro Charge Ultra 12V / 30A Charging DevicePreview image
Pro Charge Ultra 12V / 30A Charging DevicePreview image
Pro Charge Ultra 12V / 30A Charging DevicePreview image
Pro Charge Ultra 12V / 30A Charging DevicePreview image
Product image of STERLING Pro Charge Ultra 12V / 40A Charging Device
STERLING Pro Charge Ultra 12V / 40A Charging Device
only 453 74 €
(1)
Only 2 in stock
Pro Charge Ultra 12V / 40A Charging DevicePreview image
Pro Charge Ultra 12V / 40A Charging DevicePreview image
Pro Charge Ultra 12V / 40A Charging DevicePreview image
Pro Charge Ultra 12V / 40A Charging DevicePreview image
Pro Charge Ultra 12V / 40A Charging DevicePreview image
Pro Charge Ultra 12V / 40A Charging DevicePreview image
Pro Charge Ultra 12V / 40A Charging DevicePreview image
Product image of STERLING Pro Charge Ultra 12V / 50A Charging Device
STERLING Pro Charge Ultra 12V / 50A Charging Device
only 533 57 €
(1)
Only 3 in stock
Pro Charge Ultra 12V / 50A Charging DevicePreview image
Pro Charge Ultra 12V / 50A Charging DevicePreview image
Pro Charge Ultra 12V / 50A Charging DevicePreview image
Pro Charge Ultra 12V / 50A Charging DevicePreview image
Pro Charge Ultra 12V / 50A Charging DevicePreview image
Pro Charge Ultra 12V / 50A Charging DevicePreview image
Pro Charge Ultra 12V / 50A Charging DevicePreview image
Product image of STERLING Pro Charge Ultra 12V / 60A Charging Device
STERLING Pro Charge Ultra 12V / 60A Charging Device
only 621 81 €
(3)
In stock
Pro Charge Ultra 12V / 60A Charging DevicePreview image
Pro Charge Ultra 12V / 60A Charging DevicePreview image
Pro Charge Ultra 12V / 60A Charging DevicePreview image
Pro Charge Ultra 12V / 60A Charging DevicePreview image
Pro Charge Ultra 12V / 60A Charging DevicePreview image
Pro Charge Ultra 12V / 60A Charging DevicePreview image
Product image of STERLING Pro Charge Ultra 24V / 20A Charging Device
STERLING Pro Charge Ultra 24V / 20A Charging Device
only 512 56 €
No rating yet
Only 2 in stock
Pro Charge Ultra 24V / 20A Charging DevicePreview image
Pro Charge Ultra 24V / 20A Charging DevicePreview image
Pro Charge Ultra 24V / 20A Charging DevicePreview image
Pro Charge Ultra 24V / 20A Charging DevicePreview image
Pro Charge Ultra 24V / 20A Charging DevicePreview image
Pro Charge Ultra 24V / 20A Charging DevicePreview image
Pro Charge Ultra 24V / 20A Charging DevicePreview image
Product image of STERLING Pro Charge Ultra 24V / 30A Charging Device
STERLING Pro Charge Ultra 24V / 30A Charging Device
only 668 03 €
No rating yet
Pro Charge Ultra 24V / 30A Charging DevicePreview image
Pro Charge Ultra 24V / 30A Charging DevicePreview image
Pro Charge Ultra 24V / 30A Charging DevicePreview image
Pro Charge Ultra 24V / 30A Charging DevicePreview image
Pro Charge Ultra 24V / 30A Charging DevicePreview image
Pro Charge Ultra 24V / 30A Charging DevicePreview image
Pro Charge Ultra 24V / 30A Charging DevicePreview image
Product image of STERLING Mobile Trapeze Inverter PRO POWER Q / 12 V
STERLING Mobile Trapeze Inverter PRO POWER Q / 12 V
only 56 26 €
(1)
Only 2 in stock
Mobile Trapeze Inverter PRO POWER Q / 12 VPreview image
Mobile Trapeze Inverter PRO POWER Q / 12 VPreview image
Mobile Trapeze Inverter PRO POWER Q / 12 VPreview image
Product image of STERLING Mobile trapeze inverter PRO POWER Q
STERLING Mobile trapeze inverter PRO POWER Q
only 52 90 €
No rating yet
Only 3 in stock
Mobile trapeze inverter PRO POWER QPreview image
Mobile trapeze inverter PRO POWER QPreview image
Mobile trapeze inverter PRO POWER QPreview image
Product image of STERLING ZINC SAVER II Galvanic Isolator
STERLING ZINC SAVER II Galvanic Isolator
only 109 20 €
(25)
In stock
ZINC SAVER II Galvanic IsolatorPreview image
ZINC SAVER II Galvanic IsolatorPreview image
ZINC SAVER II Galvanic IsolatorPreview image
Product image of STERLING Digital Battery Tester / 12 V
STERLING Digital Battery Tester / 12 V
only 57 10 €
No rating yet
Only 3 in stock
Digital Battery Tester / 12 VPreview image
Digital Battery Tester / 12 VPreview image
Digital Battery Tester / 12 VPreview image
Digital Battery Tester / 12 VPreview image
Product image of STERLING Manual 3-Way Switch / 16 A
STERLING Manual 3-Way Switch / 16 A
only 20 97 €
(1)
In stock
Manual 3-Way Switch / 16 APreview image
Manual 3-Way Switch / 16 APreview image
Manual 3-Way Switch / 16 APreview image
Manual 3-Way Switch / 16 APreview image
Manual 3-Way Switch / 16 APreview image
Manual 3-Way Switch / 16 APreview image
Product image of STERLING Manual 3-Way Switch / 32 A
STERLING Manual 3-Way Switch / 32 A
only 32 73 €
No rating yet
Only 4 in stock
Product image of STERLING ProSwitch Automatic Switch / 32 A
STERLING ProSwitch Automatic Switch / 32 A
only 336 09 €
No rating yet
Only 4 in stock
ProSwitch Automatic Switch / 32 APreview image
ProSwitch Automatic Switch / 32 APreview image
ProSwitch Automatic Switch / 32 APreview image
Product image of STERLING Contact Relay for ProSwitch
STERLING Contact Relay for ProSwitch
only 53 74 €
No rating yet
Only 1 in stock
Contact Relay for ProSwitchPreview image
Contact Relay for ProSwitchPreview image
Product image of STERLING TSAY Temperature Sensor for STERLING BB1230, BB1260 and BBW Series
STERLING TSAY Temperature Sensor for STERLING BB1230, BB1260 and BBW Series
only 19 29 €
No rating yet
Only 3 in stock
TSAY Temperature Sensor for STERLING BB1230, BB1260 and BBW SeriesPreview image
TSAY Temperature Sensor for STERLING BB1230, BB1260 and BBW SeriesPreview image
Product image of STERLING Temperature Sensor for STERLING Pro Charge Ultra Chargers
STERLING Temperature Sensor for STERLING Pro Charge Ultra Chargers
only 18 45 €
No rating yet
Only 2 in stock
Product image of STERLING Remote Control for Pro Charge Ultra Chargers
STERLING Remote Control for Pro Charge Ultra Chargers
only 106 68 €
(2)
In stock
Remote Control for Pro Charge Ultra ChargersPreview image
Remote Control for Pro Charge Ultra ChargersPreview image
Remote Control for Pro Charge Ultra ChargersPreview image
Remote Control for Pro Charge Ultra ChargersPreview image
Product image of STERLING Remote Control with Display for B2B-Charger
STERLING Remote Control with Display for B2B-Charger
only 106 68 €
No rating yet
Only 4 in stock
Remote Control with Display for B2B-ChargerPreview image
Remote Control with Display for B2B-ChargerPreview image
Remote Control with Display for B2B-ChargerPreview image
Remote Control with Display for B2B-ChargerPreview image
Remote Control with Display for B2B-ChargerPreview image
Product image of STERLING PRO REG DW Advanced Alternator Regulator
STERLING PRO REG DW Advanced Alternator Regulator
only 210 04 €
No rating yet
In stock
PRO REG DW Advanced Alternator RegulatorPreview image
PRO REG DW Advanced Alternator RegulatorPreview image
Product image of STERLING Pro Protect A Alternator Protection Switch
STERLING Pro Protect A Alternator Protection Switch
from 46 18 €
(3)
2 variants
Pro Protect A Alternator Protection SwitchPreview image
Pro Protect A Alternator Protection SwitchPreview image
Pro Protect A Alternator Protection SwitchPreview image
Product image of STERLING DIGITAL High-Performance Regulator / waterproof
STERLING DIGITAL High-Performance Regulator / waterproof
only 142 82 €
(4)
In stock
DIGITAL High-Performance Regulator / waterproofPreview image
DIGITAL High-Performance Regulator / waterproofPreview image
DIGITAL High-Performance Regulator / waterproofPreview image
DIGITAL High-Performance Regulator / waterproofPreview image
Product image of STERLING PRO BATT ULTRA Battery-to-Battery Charger / 12 -12 V / 30 A
STERLING PRO BATT ULTRA Battery-to-Battery Charger / 12 -12 V / 30 A
only 294 08 €
(2)
PRO BATT ULTRA Battery-to-Battery Charger / 12 -12 V / 30 APreview image
PRO BATT ULTRA Battery-to-Battery Charger / 12 -12 V / 30 APreview image
PRO BATT ULTRA Battery-to-Battery Charger / 12 -12 V / 30 APreview image
PRO BATT ULTRA Battery-to-Battery Charger / 12 -12 V / 30 APreview image
PRO BATT ULTRA Battery-to-Battery Charger / 12 -12 V / 30 APreview image
PRO BATT ULTRA Battery-to-Battery Charger / 12 -12 V / 30 APreview image
PRO BATT ULTRA Battery-to-Battery Charger / 12 -12 V / 30 APreview image
PRO BATT ULTRA Battery-to-Battery Charger / 12 -12 V / 30 APreview image
Product image of STERLING PRO BATT ULTRA Battery-to-Battery Charger / 12 - 24 V / 70 A
STERLING PRO BATT ULTRA Battery-to-Battery Charger / 12 - 24 V / 70 A
only 462 14 €
No rating yet
Only 2 in stock
PRO BATT ULTRA Battery-to-Battery Charger / 12 - 24 V / 70 APreview image
PRO BATT ULTRA Battery-to-Battery Charger / 12 - 24 V / 70 APreview image
PRO BATT ULTRA Battery-to-Battery Charger / 12 - 24 V / 70 APreview image
PRO BATT ULTRA Battery-to-Battery Charger / 12 - 24 V / 70 APreview image
PRO BATT ULTRA Battery-to-Battery Charger / 12 - 24 V / 70 APreview image
PRO BATT ULTRA Battery-to-Battery Charger / 12 - 24 V / 70 APreview image
PRO BATT ULTRA Battery-to-Battery Charger / 12 - 24 V / 70 APreview image
PRO BATT ULTRA Battery-to-Battery Charger / 12 - 24 V / 70 APreview image
PRO BATT ULTRA Battery-to-Battery Charger / 12 - 24 V / 70 APreview image
Product image of STERLING PRO BATT ULTRA Battery-to-Battery Charger / 12 - 12 V / 60 A
STERLING PRO BATT ULTRA Battery-to-Battery Charger / 12 - 12 V / 60 A
only 361 30 €
(1)
In stock
PRO BATT ULTRA Battery-to-Battery Charger / 12 - 12 V / 60 APreview image
PRO BATT ULTRA Battery-to-Battery Charger / 12 - 12 V / 60 APreview image
PRO BATT ULTRA Battery-to-Battery Charger / 12 - 12 V / 60 APreview image
PRO BATT ULTRA Battery-to-Battery Charger / 12 - 12 V / 60 APreview image
PRO BATT ULTRA Battery-to-Battery Charger / 12 - 12 V / 60 APreview image
Product image of STERLING PRO BATT ULTRA Battery-to-Battery Charger / 24 - 24 V / 35 A
STERLING PRO BATT ULTRA Battery-to-Battery Charger / 24 - 24 V / 35 A
only 462 14 €
(1)
Only 1 in stock
PRO BATT ULTRA Battery-to-Battery Charger / 24 - 24 V / 35 APreview image
PRO BATT ULTRA Battery-to-Battery Charger / 24 - 24 V / 35 APreview image
PRO BATT ULTRA Battery-to-Battery Charger / 24 - 24 V / 35 APreview image
PRO BATT ULTRA Battery-to-Battery Charger / 24 - 24 V / 35 APreview image
PRO BATT ULTRA Battery-to-Battery Charger / 24 - 24 V / 35 APreview image
PRO BATT ULTRA Battery-to-Battery Charger / 24 - 24 V / 35 APreview image
PRO BATT ULTRA Battery-to-Battery Charger / 24 - 24 V / 35 APreview image
Product image of STERLING PRO BATT ULTRA Battery-to-Battery Charger / 24 - 12 V / 35 A
STERLING PRO BATT ULTRA Battery-to-Battery Charger / 24 - 12 V / 35 A
only 462 14 €
No rating yet
Only 2 in stock
PRO BATT ULTRA Battery-to-Battery Charger / 24 - 12 V / 35 APreview image
PRO BATT ULTRA Battery-to-Battery Charger / 24 - 12 V / 35 APreview image
PRO BATT ULTRA Battery-to-Battery Charger / 24 - 12 V / 35 APreview image
PRO BATT ULTRA Battery-to-Battery Charger / 24 - 12 V / 35 APreview image
PRO BATT ULTRA Battery-to-Battery Charger / 24 - 12 V / 35 APreview image
PRO BATT ULTRA Battery-to-Battery Charger / 24 - 12 V / 35 APreview image
PRO BATT ULTRA Battery-to-Battery Charger / 24 - 12 V / 35 APreview image
Product image of STERLING Battery-to-Battery Charger / 12 V to 12 V / 30 A
STERLING Battery-to-Battery Charger / 12 V to 12 V / 30 A
only 256 26 €
(4)
Only 2 in stock
Battery-to-Battery Charger / 12 V to 12 V / 30 APreview image
Battery-to-Battery Charger / 12 V to 12 V / 30 APreview image
Battery-to-Battery Charger / 12 V to 12 V / 30 APreview image
Battery-to-Battery Charger / 12 V to 12 V / 30 APreview image
Product image of STERLING Battery-to-Battery Charger / 12 V to 24 V / 30 A
STERLING Battery-to-Battery Charger / 12 V to 24 V / 30 A
only 256 26 €
(1)
Only 2 in stock
Battery-to-Battery Charger / 12 V to 24 V / 30 APreview image
Battery-to-Battery Charger / 12 V to 24 V / 30 APreview image
Battery-to-Battery Charger / 12 V to 24 V / 30 APreview image
Battery-to-Battery Charger / 12 V to 24 V / 30 APreview image
Product image of STERLING Battery-to-Battery Charger / 24 V to 12 V / 13 A
STERLING Battery-to-Battery Charger / 24 V to 12 V / 13 A
only 243 66 €
No rating yet
Only 2 in stock
Battery-to-Battery Charger / 24 V to 12 V / 13 APreview image
Battery-to-Battery Charger / 24 V to 12 V / 13 APreview image
Battery-to-Battery Charger / 24 V to 12 V / 13 APreview image
Battery-to-Battery Charger / 24 V to 12 V / 13 APreview image
Product image of STERLING Batterie-zu-Batterie-Lader PRO BATT ULTRA / integr. MPPT Solarregler
STERLING Batterie-zu-Batterie-Lader PRO BATT ULTRA / integr. MPPT Solarregler
only 336 09 €
No rating yet
Only 4 in stock
Batterie-zu-Batterie-Lader PRO BATT ULTRA / integr. MPPT SolarreglerPreview image
Batterie-zu-Batterie-Lader PRO BATT ULTRA / integr. MPPT SolarreglerPreview image
Batterie-zu-Batterie-Lader PRO BATT ULTRA / integr. MPPT SolarreglerPreview image
Batterie-zu-Batterie-Lader PRO BATT ULTRA / integr. MPPT SolarreglerPreview image
Batterie-zu-Batterie-Lader PRO BATT ULTRA / integr. MPPT SolarreglerPreview image
Product image of STERLING Remote Control for PRO DIGITAL High Performance Controller
STERLING Remote Control for PRO DIGITAL High Performance Controller
only 146 18 €
(2)
Only 1 in stock
Product image of STERLING Remote Control for Alternator Charger
STERLING Remote Control for Alternator Charger
only 235 25 €
(1)
Only 3 in stock
Remote Control for Alternator ChargerPreview image
Remote Control for Alternator ChargerPreview image
Remote Control for Alternator ChargerPreview image
Remote Control for Alternator ChargerPreview image
Remote Control for Alternator ChargerPreview image
Product image of STERLING Remote Control for Alternator Charger
STERLING Remote Control for Alternator Charger
only 120 13 €
(2)
In stock
Remote Control for Alternator ChargerPreview image
Remote Control for Alternator ChargerPreview image
Remote Control for Alternator ChargerPreview image
Remote Control for Alternator ChargerPreview image
Product image of STERLING Temperature Sensor
STERLING Temperature Sensor
only 18 45 €
(2)
In stock
Temperature SensorPreview image
Temperature SensorPreview image
Temperature SensorPreview image
Product image of STERLING Remote control for PRO LATCH R
STERLING Remote control for PRO LATCH R
only 83 99 €
No rating yet
Only 2 in stock
Remote control for PRO LATCH RPreview image
Remote control for PRO LATCH RPreview image
Remote control for PRO LATCH RPreview image
Remote control for PRO LATCH RPreview image
Remote control for PRO LATCH RPreview image
Product image of STERLING PRO LATCH R Deep Discharge Protector
STERLING PRO LATCH R Deep Discharge Protector
from 120 97 €
No rating yet
3 variants
PRO LATCH R Deep Discharge ProtectorPreview image
PRO LATCH R Deep Discharge ProtectorPreview image
PRO LATCH R Deep Discharge ProtectorPreview image
Product image of STERLING Alternator to Battery Charger / 12 V / 80 A
STERLING Alternator to Battery Charger / 12 V / 80 A
only 382 31 €
(6)
Only 4 in stock
Product image of STERLING Alternator to Battery Charger / 12 V / 130 A
STERLING Alternator to Battery Charger / 12 V / 130 A
only 424 33 €
(1)
Only 5 in stock
Alternator to Battery Charger / 12 V / 130 APreview image
Alternator to Battery Charger / 12 V / 130 APreview image
Alternator to Battery Charger / 12 V / 130 APreview image
Alternator to Battery Charger / 12 V / 130 APreview image
Alternator to Battery Charger / 12 V / 130 APreview image
Product image of STERLING Alternator to Battery Charger / 12 V / 160 A
STERLING Alternator to Battery Charger / 12 V / 160 A
only 478 95 €
(6)
Only 3 in stock
Product image of STERLING Alternator to Battery Charger / 24 V / 100 A
STERLING Alternator to Battery Charger / 24 V / 100 A
only 533 57 €
(1)
Only 1 in stock
Alternator to Battery Charger / 24 V / 100 APreview image
Alternator to Battery Charger / 24 V / 100 APreview image
Alternator to Battery Charger / 24 V / 100 APreview image
Alternator to Battery Charger / 24 V / 100 APreview image
Alternator to Battery Charger / 24 V / 100 APreview image
Alternator to Battery Charger / 24 V / 100 APreview image
Alternator to Battery Charger / 24 V / 100 APreview image

Charging technology from Sterling

- How do I charge my battery efficiently? -

The PRO CHARGE ULTRA convinces with numerous innovative features to optimally charge up to three batteries and ensure long battery life. They are available for both 12V and 24V vehicle electrical systems and in different current strengths.

Suitable for various types of batteries

The Pro Charge Ultra chargers have 11 pre-programmed charging characteristics for the following battery types: Gel, AGM, maintenance-free or open lead acid batteries, calcium or even LiFePo4 batteries. 
If your battery is not one of the pre-programmed types, you can easily set and save parameters for the final charge or trickle charge voltage via the device's control panel.