Maintenance
A practical five-year cost comparison of lead-acid and lithium forklift batteries, including battery rooms, watering, spare sets and opportunity charging.
Last updated: 11 October 2026
Lithium costs roughly twice as much up front. Whether that pays back depends almost entirely on how many shifts you run and whether you can charge during breaks.
What you pay for with lead-acid
- Lower purchase price — roughly half of lithium for the same capacity
- **A battery room** — ventilated, with eyewash and spill containment, and the floor space it occupies
- **Watering** — typically weekly; a task that gets skipped and shortens battery life
- **Equalising charges** — 6 – 8 hours, during which the truck is out of service
- **A spare set per truck** for multi-shift operation — which doubles the battery cost
- **Shorter life** — typically 1,500 cycles, or about 4 – 5 years on single shift
What you get with lithium
- **Opportunity charging** — plug in during breaks and lunch; no equalising, no full cycle required
- **No battery room** — no ventilation, no watering, no spill containment, and you get the floor space back
- **Full capacity to the end of the shift** — the voltage curve is flat, so performance does not fade
- **Longer life** — typically 3,000 – 4,000 cycles
- **Better cold performance** — a heated pack works close to rating at −25 °C
- **Higher acquisition cost** and a more complex charger and BMS
The five-year comparison
| Cost item | Lead-acid | Lithium |
|---|
| Battery purchase (1 truck, 1 shift) | £ | ££ |
| Spare battery for 3-shift operation | Yes — doubles cost | Not required |
| Battery room build + floor space | Required | Not required |
| Watering labour (weekly, 5 years) | Significant | None |
| Charger | Simple, cheap | More expensive |
| Battery life | 1,500 cycles | 3,000 – 4,000 cycles |
| Typical better choice | **1 shift, has space** | **2+ shifts, or no space** |
The rule of thumb
One shift with a charging corner: lead-acid is usually still the cheaper choice over five years. Two or three shifts, or nowhere to put a battery room: lithium normally pays back within two years. Add the cost of a spare lead-acid set and the comparison flips before the second shift begins.
Need help choosing the right truck?
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Frequently asked questions
Lead-acid or lithium — which is cheaper?
Lead-acid costs less up front. Over five years, two-shift operations with opportunity charging usually favour lithium.
Does lithium need a charging room?
No. Lithium can be opportunity charged without a dedicated charging room or water top-up, saving both space and labour.
How long does a lead-acid battery last?
Typically 1,500–2,000 cycles, roughly four to five years on a single daily charge. Lithium commonly exceeds 3,000 cycles.
