User`s manual

Elite

™

1000W Pro by Wagan Tech

www.wagan.com

Wagan Tech and wagan.com are trademarks used by Wagan Corporation.

battery that is required. Ten hours at 50 amps equals 500 amp-hours (AH). There are additional

factors that determine actual run time. These include:

• AC appliance load and time in use (basic AH).

• Cable gauge and length (cable losses).

• Charge level of the batteries (between use, chargers have to be able

to fully charge the batteries).

• Temperature of the batteries (colder batteries provide fewer amps).

• Age and condition of the batteries (older batteries lose AH capacity).

• Compliance with turning off unnecessary AC loads.

• Use of DC appliances and compliance with turning off unnecessary

DC loads.

DERATING THE BATTERY BANK

Most lead-acid batteries have a rating expressed in amp-hours (AH). The most common rating of

AH is “at the 20 hour rate”.

NOTE: Despite several internet explanations, there is no relationship between cold cranking amps

(CCA) and ampere-hours (AH).

For example, if a 20 AH battery is discharged at a 1 amp rate, is will take 20 hours to discharge

that battery. The terms “charged” and “discharged” relate to actual battery voltage. This means

that the output voltage of a nominal 24 volt battery starts at 13.4 volts (fully charged) then drops

to 10.7 volts (discharged). If the load on the battery causes the battery to discharge faster than

the 20 hour rate, the capacity (AH) of the battery is measurably reduced (derated). In heavy

battery discharge applications, double the estimated Amp Hour rating and conﬁgure batteries

to support this capacity. If the batteries are frequently charged by an alternator, the Amp Hour

rating of the battery may be reduced.

CONFIGURING THE BATTERY BANK

Batteries that are used indoors or inside a vehicle or vessel, should be deep-cycle, sealed lead

acid batteries.

NOTE: It is important that for any inverter installation to battery protection fuses. Battery fuses are

added to the positive (+) battery cable as close as possible to the battery bank’s positive terminal.

The fuse amperage rating must be sized to allow simultaneous operation of all the AC appliances

to be powered, plus 20 percent safety factor. Fuses are very important to protect equipment, bat-

teries and personnel. The fuses protect against battery explosion if the cables that connect to the

inverter accidentally short.

BATTERY BANK DIAGRAM

The diagram below shows inverter connections to a battery bank with recommended fuse protec-

tion.