Frequently Asked Questions

Solterra primarily focuses on Light Electric Vehicles (LEVs), offering solutions such as:

• Portable and onboard chargers for 2-wheelers and 3-wheelers
• Onboard chargers and communication modules for 4-wheelers
• Communication modules for public DC fast-charging infrastructure

Most of our products operate in the low-voltage domain, though we also offer select high-voltage solutions.

In addition to products, we provide engineering services including system design, concept development, enclosure design, and license-based technology transfers.

Our flagship product—the LEV DC Fast Charger (IEC 61851-25)—is currently under development and is planned to be launched in collaboration with the Bharat Charge Alliance (BCA).

Yes. We regularly customize CAN protocols to suit specific vehicle and BMS requirements. Our team works closely with customers to define message structures, fault handling, diagnostics, and overall system behavior for seamless vehicle integration.

Solterra chargers support all major battery chemistries, including:

• Lead Acid (VRLA and Flooded)
• Lithium-ion families such as LFP, NMC, NCA, and LTO

Charging profiles can be fully tailored based on chemistry, voltage, current, and lifecycle requirements.

Charging time depends on the charger power rating and the battery pack’s ability to accept power.
Our chargers range from 300 W to 12 kW, enabling charge times from under an hour to over 8 hours, depending on the application.

Yes. Solterra offers extensive customization options, including:

• Housing and industrial design
• Cable length and connector type
• RCD and protection features
• Firmware behavior and CAN messages
• Colors, branding, and LED indications
• Handles, mounting brackets, interlocks, and auxiliary power outputs

Yes. Our chargers are environmentally sealed and designed to withstand dust, water, vibration, electrical noise, and surges. With suitable customization, they can be used in portable, wall-mounted, or onboard configurations.

Environmental exposure is a major cause of power-electronics failure due to dust ingress, humidity, PCB dendrite formation, and arc tracking.
All Solterra chargers are IP67-sealed, ensuring high reliability and a long operational life even in harsh conditions.

Our chargers include comprehensive protections such as:

• Over-temperature
• Reverse polarity
• Short-circuit and overload protection
• Over-voltage and under-voltage protection
• Automatic cutoff and fault isolation
• Surge protection, EMI/EMC compliance
• Shock and vibration resistance

Additional protections can be implemented based on project requirements.

We do maintain reference pricing, but quotations are typically shared after finalizing technical requirements, drawings, and estimated annual volumes.

Yes. Our 4W portfolio includes:

• Onboard chargers
• Vehicle communication controllers (CHAdeMO, ISO 15118, GB/T)
• EVSE and charging communication modules

During AC-to-DC conversion, a small amount of power is lost as heat. Active cooling ensures the charger remains within safe operating and touch-safe temperature limits, improving reliability and extending product life.

Our chargers support a wide range of charging algorithms, including:

• CC-CV profiles
• Pulse and fast-response charging
• Smooth soft-start and controlled end-of-charge behavior

Slew rates and regulation accuracy are tuned to meet demanding battery and BMS requirements.

Solterra can manufacture over 25,000 chargers per month, with the ability to scale production based on customer demand and program timelines.

Our chargers currently support voltages ranging from 12 V up to 500 V, depending on the product family.

Solterra chargers are used across a wide range of applications, including:

• Electric two-wheelers and three-wheelers
• Golf carts and recreational vehicles (RVs)
• Electric motorcycles and marine systems
• Robotics, industrial equipment, and specialty battery systems

We support 10–15 standard connector options across AC and DC interfaces. Proprietary or customer-specific connectors can also be integrated.

Simply contact us. We will share a Customer Parameters Request Form, which helps capture electrical, mechanical, and functional requirements to recommend the right solution.

Absolutely. Once you complete the parameters request form, our engineering team will recommend the most suitable charger and configuration.

We typically offer a standard 3-year warranty, subject to usage conditions and contractual terms. Annual Maintenance Contracts (AMC) can also be arranged through bespoke agreements.

Yes. Our products are designed to comply with applicable IEC, AIS, and automotive standards, depending on the application and market.

Yes. We offer OEM and white-label solutions, including custom branding, labeling, and documentation.

Yes. We support prototyping, pilot builds, and pre-production runs, followed by volume scaling.

We provide complete technical documentation, including CAN files, pinouts, mechanical drawings, and test reports, along with engineering support during integration.