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Function:
1. It enables you to see your batterys capacity at a glance, giving you plenty of time to avoid sudden power failures. 
2. Very brief and periodic discharging current pulses to prevent damaging sulphate deposits forming on the lead plates and considerably extends the battery life.

 Technical data:
1. Discharging current pulse: up to 100 A
2. Discharging pulse time interval: 20 s
3. Discharging pulse duration: 100 us
4. Quiescent current draw: <1.5/0.5 MA
5. Operating voltage: 11 – 18 V