Spark Shop Ultimate
Part number: 27-390
Pack size: EA
Type: Automatic 
Volt In: 230V 
Volt Out: 12V 
Amp/Watt: 10A 
Feature: 1 Output/4 Stage 
Comment: Lead Acid/Gel/Cal. 

Part # 27-390

The 27-390 battery charger utlises the latest charging technology and is suitable for
AGM, gel, flooded, Calcium, VRLA and sealed lead acid batteries.

  • AC cord, C13 inlet and AC100-240V input for worldwide use
  • Ideal for charging all SLA/VRLA/GEL/AGM Lead acid batteries
  • Fully automatic MCU controlled 4 stage charging process
  • 4 green LED indicators for battery charging
  • Red LED for power
  • Outputs constant current for faster charging
  • Protects: Short circuit/OVP/OCP/Overload/Polarity reversed
  • 100% full load and burn-in test
  • High efficiency, long life and high reliability
  • 12V 20~100Ah


  • DC Voltage 13.8V
  • Rated Current 8A/10A(Max)
  • Rated Power 116W/145W
  • Voltage Range 12 - 15V
  • Current Range ±0.5A
  • Voltage Tolerance ±1%
  • Line Regulation ±0.5%


  • Voltage Range 100 - 240VAC
  • Frequency Range 47 - 63Hz
  • Efficiency 80%
  • AC Current 2.0A/115VAC 1.0A/230VAC Fuse=3A


  • Charging Process Ud-Im-Uo-Up
  • Charging Mode Fully automatic/4 stages
  • Folating Charge Condition <1A
  • Charging Indicator 4 Green LED:25 - 100% Flash+Fault
  • Suit Battery 12V 20 - 100AH
  • Charging Time 3 - 12H


  • Over Voltage 15V(Limited)
  • Over Load 110 - 140% rated output power
  • Output Shorted Green LED Flash/Hiccup mode - recovers
  • Polarity Reversed automatically after fault condition is removed


  • Working Temp -10 - +50°
  • Working Humidity 20-90% RH non-condensing
  • Storage Temp Humidity -10 - +50°C 20-90%
  • Cooling Fan Cooling
  • Water Proof IP20
  • Impact 1 Metre drop test> =3times


  • Safety Standards EN60950-1, EN55022, EN6900
  • MTBF 30000 Hrs MIL-HDBK-217F
  • ESD 8KV
  • Isolation Resistance i/p to o/p: 3000V (1min.)
  • Max. Temp Rise <40°C on casing


  • Weight 450g
  • Size 160*95*55MM
  • Case Aluminium

Four Stage Charging Procedure

Stage 1: Desulfating

The charger enters this stage if it detects battery sulfation or severe discharge,
desulfating through an 18V pulse. Once the desulfation stage is complete the
charger moves to Bulk Charge stage.

Stage 2: Bulk Charge

This stage uses high current for the type of battery in use until it reaches 80% charge.
Note: If the battery stays at stage 2 after 24 hours of charging then battery may be

Stage 3: Absorption

The output voltage is limited to 14.7V and the current decreases to charge the
battery to its full capacity.

Stage 4: Float

At this stage, the battery is fully charged and the charger maintains the battery
through pulse charging

The Neuton Power charger will enter protection mode when the battery polarity is
reversed or if the output connectors are shorted.

1-4 green LED lights will glow solidly to reflect the state of charge. 25%, 50%,
75% or 100%. If all four lights glow solidly the battery is fully charged.
You can disconnect the battery or you can keep it connected to the charger
in float mode.