Overview#
The Airman EBOSS 70-45 is a diesel-battery hybrid energy system combining a 70 kVA Airman generator with 45 kWh of Lithium Titanate Oxide (LTO) battery storage. The EBOSS system automatically manages power flow — running on battery alone during light loads, blending during peaks, and recharging during optimal engine windows. This dramatically reduces fuel consumption, emissions, and noise for noise-sensitive sites like urban construction and events. At 56 kW prime, the EBOSS 70-45 sits in the mid-range of the hybrid lineup, providing enough capacity for most commercial construction temporary power needs while delivering the fuel and noise advantages that define the EBOSS platform.
Features unlimited parallel capability for both generator input and power output. LTO battery chemistry offers superior cycle life and fast charging. Built by Hokuetsu Industries in Japan with 110% fluid containment.
EBOSS Hybrid Technology at 70 kVA#
The EBOSS 70-45 steps up to the Isuzu 4JJ1X engine platform and a 45 kWh LTO battery bank — a meaningful increase in both diesel capacity and stored energy over the entry-level EBOSS 25-25. The larger battery bank extends battery-only runtime during light-load periods, which is where the EBOSS system delivers its most dramatic fuel savings and noise elimination. During variable-load construction days, the intelligent power management system keeps the diesel engine off for longer stretches, cycling it on only at optimal load points for efficient recharging. The 70 kVA rating covers the power needs of most mid-size commercial construction sites: temporary building power, tower crane support, welding machines, and concrete pumps. The unlimited paralleling capability means multiple EBOSS 70-45 units can be linked for larger sites without derating.
Our Service Experience#
The EBOSS 70-45 is our go-to recommendation for urban construction projects in the Bay Area where noise restrictions are enforced. San Francisco, Oakland, and Palo Alto all have daytime noise ordinances that conventional diesel generators can struggle with on sites adjacent to occupied buildings. The EBOSS 70-45's battery-only mode allows work to proceed during noise-sensitive hours, with the diesel engine cycling on during less restricted periods for recharging.
On the maintenance side, the Isuzu 4JJ1X diesel components follow the standard 250-hour oil change schedule. The LTO battery system requires minimal maintenance — periodic visual inspection and connection checks. A key operational advantage we have observed is that the diesel engine accumulates fewer operating hours per calendar day compared to a conventional generator on the same site, which effectively extends service intervals in calendar time. The primary consideration between deployments is ensuring the battery system is stored with adequate charge to maintain cell health.
