230V - 620/1830W
24/48V - 255/375Ah
6/12 charging positions
The Helvi Progress 25 and Helvi Progress 35B professional battery chargers are designed to meet the needs of large charging stations, offering reliable performance and versatility of use. Both models operate with a single-phase power supply of 230V ±10% at 50/60 Hz, and are equipped with electronic regulation of the charging current, automatic control and maintenance function.
Helvi Progress 25 has a power of 620 W and supports battery voltages from 6 to 24V , with a maximum current of 25 A. Helvi Progress 35B, more powerful 1830 W , manages batteries up to 48V with a maximum current of 38 A. Both include voltage/current selectors, ammeter, automatic thermal protection and light indicators on the charge status.
Compact yet robust, these Helvi chargers are ideal for large charging stations.
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Both models integrate an automatic charging system with current regulation via potentiometer , and are equipped with a maintenance function, useful for preserving the charge over time. The electronic control of the current guarantees precision, while the light indicators allow the operator to monitor the charge status in real time. The integrated ammeter and automatic thermal protection increase the level of safety, protecting both the equipment and the batteries from any overloads or overheating.
Helvi Progress 25 and Helvi Progress 35B are compatible with AGM, GEL, lead-acid and Start/Stop batteries , making them suitable for a wide range of vehicles and machinery. The Progress 25, lighter at 12.8 kg , is ideal for mobile workstations or intermediate uses. Helvi Progress 35B, weighing 22.8 kg , is designed for fixed environments with high operational intensity, where frequent and rapid charging is required.
Progress 25/35B is a battery charger for charging stations ideal for:


















Helvi SpA is an Italian company belonging to the Beta group. Based in Sandrigo, in the province of Vicenza, this Italian manufacturing company specializes in industrial welding machines , plasma cutting machines, professional battery chargers and accessories .
| Model | Progress 25 | Progress 35B |
| Code | 99000031 | 99000040 |
| Power Supply | 230V | 230V |
| Power | 620W | 1830 W |
| Battery Voltage | 6/12/24 V | 6/12/24/36/48 V |
| Maximum Current | 25 A | 38 A |
| Charging Current | 17 A | 25 A |
| Charging Capacity | 255 Ah 15h | 375 Ah 15h |
| Charging Position | 6 | 12 |
| Dimensions | 24.5 x 25 x 43.5 cm | 24.5 x 25 x 43.5 cm |
| Weight | 12.2 kg | 22.2 kg |
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By purchasing from Indors you will also have purchased peace of mind: our Assistance and Repairs Service guarantees quick and timely solutions for any problem thanks to the safe availability of spare parts, your equipment will always be efficient and available within a few days at a low cost. More information
All products sold by Indors are covered by the European legal warranty for lack of conformity pursuant to Articles 128 et seq. of Legislative Decree No. 206/2005. The warranty is valid starting from the date of purchase. Professional users are entitled to a 12-month warranty.
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