This battery kit significantly improves maneuverability of the SV42 carts

The Ergotron SRVC-LIFEC-SV42 SLA-to-Life Power System Conversion is used to Convert your existing SLA-battery-technology SV42 cart to Lithium Iron Phosphate (Life) power.
 
It is very lightweight, replacing SLA-based power with a new Life system enables a weight reduction of more than 30 lbs / 13.6 kg. A fast recharge life means the unit can recharge from a full discharge in 2.0–2.5 hours vs. 6–8 hours for comparable SLA battery. It also has longer battery cycle life and long run times. The Life battery is expected to last more than 3000 cycles, which offers a lifetime of 3 years or more, vs. a few hundred cycles for an SLA battery. A Life battery can be discharged to zero without battery degradation. This provides a run-time that is slightly longer than Ergotron’s 66 Ah SLA systems, which should not be fully discharged. It includes a new 150W Power Module, 40 Ah Lithium Iron Phosphate (Life) Battery, and User Interface, battery cable harness, new base cover and recycling of SLA components.