| Detail | For this role |
|---|---|
| Department | Energy and Solar |
| Level | Entry level |
| Reports to | Solar O and M Engineer |
| Direct reports | None |
| Experience | 1 to 4 years in battery or solar maintenance |
Battery Technician job description template
Copy this job description, replace the text in square brackets and post it on your careers page or a job portal.
Job title: Battery Technician
Department: Energy and Solar
Reports to: Solar O and M Engineer
Location: [City], [office, branch or site]
About the role
A Battery Technician installs, tests and maintains batteries used in solar and backup systems, from inverter batteries to battery energy storage. They install and connect batteries, test capacity and health, maintain them, and handle them safely. The role reports to the Solar O and M Engineer or site in-charge. A good battery technician keeps batteries healthy and delivering their rated backup, catches weak cells and faults early, handles batteries and their chemicals safely, and keeps accurate maintenance and test records.
Key responsibilities
- Install and connect batteries and battery banks for solar and backup systems.
- Test battery voltage, capacity, and health during service and commissioning.
- Carry out preventive maintenance such as terminal cleaning and topping up.
- Identify weak or failing cells and replace them as needed.
- Maintain battery energy storage system racks, connections and cooling where present.
- Handle batteries, acid and chemicals safely with the correct protective gear.
- Monitor charging, discharging and battery management system alarms during operation.
- Dispose of or return old batteries as per safety and environment rules.
- Keep battery test, maintenance and cell replacement records up to date.
- Follow electrical and fire safety rules around all battery installations.
Requirements
- ITI or diploma in electrical
- Battery or solar system training
- Electrical and chemical safety awareness
- 1 to 4 years in battery or solar maintenance
KRAs and KPIs for a Battery Technician
Key result areas for the appraisal form, each with a KPI you can measure every month or quarter.
| Key result area | How to measure it |
|---|---|
| Battery health | Batteries delivering rated backup capacity above the target in tests |
| Preventive maintenance | Battery maintenance completed on schedule with no overdue task |
| Fault detection | Weak or failing cells identified before failure on most units |
| Safety | Zero acid, fire or electrical incident on battery work in the year |
| Records | Battery test and maintenance records complete and current |
| Disposal compliance | Old batteries disposed of or returned per rules with no lapse |
Skills and tools
Tools used day to day: Battery load tester, Hydrometer and multimeter, Torque wrench, Battery management system, Safety gear.
Reporting line and career path
Next roles: Senior Battery Technician, Solar O and M Technician, O and M Supervisor
Interview questions for a Battery Technician
- How do you test whether a battery bank is still delivering its capacity?
- How do you identify a weak cell in a battery bank?
- What safety precautions do you take when working with batteries and acid?
- How do you maintain a lead acid battery bank?
- How do you respond to a battery management system alarm?
- Tell me about a battery fault you found and fixed.
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What does a battery technician do?
A battery technician installs, tests and maintains batteries used in solar and backup systems, from inverter batteries to battery energy storage. They install and connect batteries, test capacity and health, carry out preventive maintenance, replace weak cells, and handle batteries and chemicals safely. They keep batteries delivering their rated backup and maintain accurate records.
What qualifications do you need to be a battery technician?
Most battery technicians hold an ITI or diploma in electrical, with battery or solar system training and electrical and chemical safety awareness. Employers look for skill in battery installation and testing, preventive maintenance, identifying weak cells, and safe handling of batteries and acid. Experience with battery management systems is an advantage.
How do you test the health of a battery bank?
A battery technician tests health by measuring each battery's voltage and specific gravity, and by running a load or capacity test to see how much backup it actually delivers against its rating. Comparing cells reveals weak ones. Regular testing catches failing batteries early so they can be replaced before they let the system down.