Lead-acid remains the workhorse for long backup hours at aggressive price points — especially when maintenance discipline exists. Lithium wins on footprint, recharge speed, and predictable cycle life when a solid BMS is in the loop.
Heat and humidity matter for both chemistries. We design for ventilation, fusing, and replacement paths — not just day-one performance.
If you’re running mission-critical online UPS, lithium paired with double-conversion topology is often the modern default — but we still match the architecture to the load.