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Designed specifically for India's harsh power conditions, the BI850SINE's state-of-the-art circuitry delivers backup power instantly, and it also recharges your battery faster, so you get the longest possible battery life. 12V system, requires One 12V Battery. It comes with a 3 Yrs. Warranty. for optimal performance and higher average life of 5 to 7 years, VIA and Tall Tubular Battery 130AH, 150AH, 180AH is provided for full system.


Pure Sine Wave Output - Eliminates humming and heat generated when powering on tube-lights and fans.

LED Indications & Audio Alarms - Provides easy-to-read status of your power conditions, Home UPS and battery.

Home/Away Switch - Keeps your battery charged when you are away, and prevents needless discharges.

Intelligent Battery Charging - Microprocessor controlled, 3 stage regulated charging ensures fastest recharging without decreasing battery life.

Wide Input Voltage Window - Saves your battery power when you really need it, during power cuts!

UPS/Inverter Switch - Lets you to power your computer systems as well as lights, fans and televisions.

Charger Selector - User selectable battery charger helps prevent under and over charging, extends battery life.

Advanced Safety Features - Safeguards your Home-UPS and battery.

Push-Button Circuit Breaker - Provides easy recovery from a overload condition while on mains mode.

Generator Compatibility - Allows you to recharge your battery while you are on generator mode.

Wave form : Pure Sine Wave
Power rating : 850VA / 500 Watts
Output Voltage on Mains - Inverter Mode : 100-290 Vac
Output Voltage on Mains - UPS Mode : 190-260 Vac
Output Voltage on Battery Mode : 195-230 Vac
LED Status Indicators : Inverter load % (50%, 75%, 100%), faults, on Mains, on battery, battery charging, check battery
Audio Alarms : on Mains & on battery switchover, overload, low battery alarms
Controls : Home/Away switch, start/test/mute, UPS/Inverter mode switch, charger output selector
Battery Charger Type : Microprocessor controlled, 3-stage, regulated charging
Battery Charger Output : User selectable - 8 Amps, 10 Amps, 12 amps, 15 Amps
Typical recharge time : 10-12 Hrs.
Overload Protection on Mains : Thermal circuit breaker with reset button
Overload Protection on Battery : Shutdown after three automatic reset attempts
Reverse Battery Polarity Protection : Fuses on rear panel
Other protections : Short circuit, low battery voltage shutdown, line-neutral reverse, over temp
Backup time (Hrs) - 500 watts : Full load - 100% = 2 hrs 30 min.
  Half Load - 50% = 5hrs.
  Just Load - 25% = 10 hrs

Physical (UPS-INVERTER): H - 140mm; W - 350mm; D - 265mm; Weight: 10.15Kg

Physical (with Battery & Trolley): H - 340mm; W - 650mm; D - 465mm; Weight: 60Kg. avg.

BI850SINE Home Applications

Home, Villas, Small Offices and more










APC Inverter

The Best Inverter Solution


Best practices for selecting a UPS

The primary function of an uninterruptible power supply (UPS) is to supply power to connected loads, such as computers, when the utility power fails or has poor quality. In either instance, the quality of UPS output waveform must be suitable for your computer's power supply. Most server power supplies contain input fault detection circuitry that verifies the quality of the UPS output waveform. Server power supplies also use active power factor correction (PFC) to improve their operation. An active PFC power supply is especially affected by the quality of a UPS output waveform. This article describes the characteristics of UPS output waveforms and recommends best practices when selecting a UPS.

Sine Wave

UPS types

There are three basic UPS topologies - standby, line-interactive, and double conversion --- but they all have a few things in common. Each consists of input circuitry, a battery bank and charger, as well as a DC/AC inverter. The input circuitry filters the source current and protects against power surges. The battery bank supplies power if utility power fails. And the DC/AC inverter circuit converts the DC power from the battery bank to AC power for the connected devices. Line interactive and double conversion UPSs include additional circuitry as described below.

Stepped Sine Wave

Square wave inverter

The square wave inverter is commonly used in low-cost standby UPS devices. Some UPS manufacturers also refer to output from a square wave inverter as a modified sine wave, step approximated sine wave, or pulse width-modulated (PWM) sine wave. The waveform includes zero voltage dead zones between each positive and negative half-cycle. Square wave inverters work well with pure resistive loads (lamps and heaters) or pure inductive loads (mixers and blenders), but not with computer power supplies. Using a UPS with a square wave inverter will cause computer power supplies to run hotter, operate less efficiently, and have a shorter life than using a UPS with a pure sine wave inverter.

Square Wave
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