The DLS series converter/power supply can be used with or without a battery. The DLS series converter/charger quickly and efficiently charges batteries at full rated output. The DLS then maintains the batteries, cutting back to milliamps to prevent overcharging or self discharge. The DLS series converter/power supply is protected against low line voltage, power spikes, and improperly adjusted generators. When used as a power supply, the DLS model will only supply what is required by the load. When not in use, it turns off, reducing electricity usage. External fuses can be quickly and easily replaced. There is a socket and jumper that can be used to change the charge voltage limit to either 13.6 or 14.2 VDC (multiply by 2 for 24 VDC and 4 for 48 VDC batteries). Chargers have 120 VAC input. 75 A and larger chargers have 120 VAC, 20 A plugs. DLS converter/chargers are covered by a 2-year warranty.
The IQ-4 makes the DLS charger into a 3-stage charger with bulk, absorption and float charging. It will bulk charge to 14.8 VDC for 15 minutes after it has reached the set-point, or for 3.75 hours. It will then absorb charge at 14.2 VDC for 8 hours, and drop to float charge at 13.6 VDC (multiply by 2 for 24 VDC and 4 for 48 VDC batteries). If the battery remains in float stage for 7 days, it delivers a bulk charge. The IQ-4 is not recommended for generator-powered battery charging if generator is only run for short periods of time.