Yes, but the load will be subjected to the on-charge voltage of the battery which is higher than the battery’s normal load voltage. Make sure your DC load is specified to be capable of handling the higher voltage with some allowance for voltage overshoot and charger adjustment tolerance. If you think it may be a problem, consider lowering the charger cyclic voltage adjustment setting or using a voltage regulator/reducer between the battery and load. This will lengthen recharge time but reduce the load. If using an SCR type charger, keep the charger cables and load cables separate or run them directly into the terminal separate from other wiring.