# ROOKS Mini booster jump starter KING SIZE 900 A 20000 mAh 12 V

- **Brand:** [ROOKS](https://autotools.ee/en/brands/rooks)
- **Product code:** OK-03.0013
- **EAN:** 5903364305574
- **Price:** ~~€131.90~~ €118.71 incl. VAT
- **Availability:** 5+ available · ready in Tallinn in 1–2 working days
- **Category:** [Batteries and charging](https://autotools.ee/en/c/batteries-charging) > [Jump starters](https://autotools.ee/en/c/jump-starters)
- **Link:** https://autotools.ee/en/products/rooks-mini-booster-kaivitusseade-king-size-900-a-20000-mah-12-v

## Description

The ROOKS Mini booster KING SIZE (OK-03.0013) is a 12 V jump starter for petrol engines up to 6 L and diesel engines up to 3 L. With a peak starting current of 900 A and a 20000 mAh lithium-polymer battery, you use it to start cars, commercial vehicles, motorcycles and other vehicles with a 12 V system, in the workshop, at a service centre or when you travel. It works from -20 °C to +60 °C.

Through two USB ports (5 V/2 A) you charge mobile devices, and with the tips included you charge a laptop at 12, 16 or 19 V. You charge the booster itself through USB type C (9 V/2 A) in 3-5 hours, and ROOKS recommends charging it every 3-6 months. The built-in LED torch makes it easier to connect the booster when visibility is poor. The protection systems guard the booster and the vehicle against overvoltage, short circuit, reverse polarity, reverse current, overload, overcharging and over-discharge, and they stabilise the voltage.

**Technical data**

- **Battery voltage:** 12 V
- **Battery:** 20000 mAh (20 Ah), lithium-polymer
- **Starting current:** 900 A (peak)
- **Engines:** petrol up to 6 L, diesel up to 3 L
- **Duty cycle:** up to 20 start attempts (4 series of 5 attempts, each up to 10 s, 90 s pause)
- **Output voltage:** 12 V / 16 V / 19 V, different tips included
- **Output current:** 12 V/8 A
- **USB ports:** 2 x USB 5 V/2 A
- **Charging port:** USB type C 9 V/2 A
- **Charging time:** 3-5 h
- **Modes:** ON / PULSE / OFF
- **Voltmeter:** yes
- **Display:** LED
- **LED torch:** yes
- **Wireless charging:** no
- **Fuses:** single-use, in the standard cables
- **Operating temperature:** \-20 °C to +60 °C
- **Charging temperature:** 0 °C to 40 °C
- **Conformity:** CE 2014/30/EU, EN 55022:2010 + AC 2011, EN 5524:2010, EN 61000-3-3:2013
- **Product code:** OK-03.0013

## How it gets to you

- **I'll collect it, Tallinn:** Free · Usually ready in 1–2 working days
- **Parcel machine:** from €2.47 · free from €100.00 · Delivery in 1–3 business days
- **Courier:** from €6.82 · free from €100.00 · Delivery in 2–5 business days

## Accessories that fit

- [ROOKS Jump leads INTELIGENT for booster OK-03.0013](https://autotools.ee/en/products/rooks-kaivituskaablid-inteligent-boosterile-ok-03-0013) — €21.51