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BC Battery Controller 700BC3500EPUK BC 3500 EVO+ Charge&Test 3.5A/1A UK Plug-Digital Charger & Battery/Alternator Tester for All 12V Car & Motorcycle Lead-Acid Batteries

BC Battery Controller 700BC3500EPUK BC 3500 EVO+ Charge&Test 3.5A/1A UK Plug-Digital Charger & Battery/Alternator Tester for All 12V Car & Motorcycle Lead-Acid Batteries

BC Battery Controller offers a range of latest generation battery chargers/maintainers, the only one 100% Made in Italy, among the safest and most advanced on the market. It executes in a fully automatic way 8 charging cycles and it can be used for the maintenance and charging of batteries used in automotive, motorcycle, scooter, camping, powersport and gardening applications as well as for “deep-cycle” batteries. In this range we can find BC 3500 EVO+, a battery charger with 3 selectable programs (CAR, BIKE, START&STOP), with a maximum charging current of 3.5 Amp (Car and Start/Stop Modes) and 1 Amp (Bike Mode for motorcycles), which is designed for a complete maintenance of all kinds of 12V traditional batteries, from lead-acid to AGM, from 1.2 Ah up to 150 Ah. It charges much faster than normal battery chargers, the battery with BC Battery Controller products can last up to 8/10 years and the device works also as a battery and alternator tester, it can repair sulfated batteries and recover batteries from 1.25V (the lowest level on the market) and it is designed for use with vehicles provided with “micro-hybrid” start/stop systems. Driven by a state-of-the-art microcomputer, BC 3500 EVO+ not only monitors the safety and the effective charging of the battery, but it also automatically reduces energy consumption to a minimum and it guarantees a high level of protection thanks to its spark-proof system and to its protections against overcharge, polarity inversion and short circuit. Fully automatic, it can stay always connected to the battery 24 hours a day / 7 days a week, for whole months, even for years in a totally safe way. Moreover, thanks to its carbon-look livery, to the simple design and to its compactness and easy handling, this product is super light and really suitable for everyone. Despite its compactness, it is provided with a very sturdy shell that prevents it from slipping and makes it resistant to scratches, falls, accidental crushing, UV rays and water (IP44). The product is delivered with comfortable clamps and practical mounting eyelets to leave installed on the vehicle. Thanks to the intuitive backlit LCD display that guarantees also a perfect night vision, every 10 seconds BC 3500 EVO+ gives us information on the battery voltage and the cycle in progress as well as on the selected program (CAR, BIKE or START&STOP). The product is covered by a 5-year warranty and a premium post-sales service directly from the factory, given the very few cases managed.

Charging Algorithm – Charging Program

The battery charger is internally controlled by a microprocessor which monitors the battery condition in real time and executes automatically 8 charging cycles.

  • Step 1 – Initialization: it verifies if one or more cells are shorted, to check whether the battery is in a proper condition to be recovered/recharged.
  • Step 2 – Recovery: if the battery is extremely discharged (starting from 1.25V), the device tries to recover it, taking it back to a higher voltage compatible with the following step.
  • Step 3 – Soft Charge: if the battery is in significantly discharged, the device provides a light pulsing current to the battery, to overcome the critical phase.
  • Step 4 – Bulk Charge: during this phase, the device provides full current to the battery, recovering about 85-90% of the battery capacity.
  • Step 5 – Desulfation / Absorption: during this phase the device provides a “controlled overcharge” to recover the remaining 10-15% of the battery capacity, through the desulfation/recovery of the lead-acid cells (for low or medium sulfation).
  • Step 6 – Battery Analysis: the device stops providing current for a few tens of minutes and verifies if the battery is able to retain the charge received during the previous charging cycles. The test is periodically repeated at regular intervals.
  • Step 7 – Maintenance: thanks to a specially designed electronic circuit, the device maintains the battery charged during periods of inactivity, without overheating, overcharging and water/electrolyte loss.
  • Step 8 – Equalization: during long term maintenance, every 30 days the device executes an equalization charge to rebalance the battery cells, avoiding phenomena of electrolyte stratification.

Content of the Package

  • 1 Battery Charger and Maintainer BC 3500 EVO+
  • Cable with eyelets (1 for the positive and 1 for the negative)
  • Cable with clamps (1 for the positive and 1 for the negative)
  • Complete instructions

BC 3500 EVO+ – Features

  • Three selectable charging programs: “CAR MODE” for car batteries, “START&STOP” for start&stop batteries and “BIKE MODE” for motorcycle batteries.
  • Backlit LCD display for easy viewing (even at night in the distance), which indicates: the active charging mode (CAR or BIKE or START&STOP), the charging cycle executed (Charge, Desulfation, Maintenance…), the battery voltage (digital Voltmeter) and any possible operating anomaly (polarity inversion, short circuit, battery not connected…).
  • Multi-language software: the user can select the language of the display among English, Italian, French, German, Spanish or Portuguese.
  • Real-time monitoring of the battery parameters during all charging cycles.
  • Battery overcharge protection: it triggers when the microprocessor detects a voltage higher than a predetermined threshold. No risk of bubble formation for all batteries on the market (also MF and Gel).
  • Tester Function. The device will execute in sequence and independently the following tests:
    1. Test battery voltage at rest (including an estimate of its state of charge);
    2. Test battery cranking voltage during the vehicle cranking;
    3. Test of the vehicle charging system (alternator/regulator).


  1. Protection against battery poles inversion.
  2. Protection against short circuit (even permanent).
  3. Protection against overheating: the supplied current is automatically limited in the event of excessive heating of the device.

3 programs: CAR for car batteries (max. charging current: 3.5 Amp), BIKE for motorcycle batteries (max. charging current: 1 Amp), START&STOP for AGM/EFB batteries (max. charging current: 3.5 Amp). TESTER MODE to check: battery state of charge and cranking power, and correct operation of the alternator/regulator on the vehicle.

For ALL 12V traditional battery types, from lead-acid to AGM, from 1.2 Ah up to 150 Ah. SAFE. No sparks. Protections against: polarity inversion, short circuit, overcharge, overheating.

100% AUTOMATIC charging and maintenance algorithm with 8 SMART CYCLES: initialization, recovery (from 1.25V), soft charge, bulk charge, desulfation, analysis, maintenance and equalization.

Technology recommended by the best car, motorcycle and battery manufacturers.

It increases your battery life up to 4 times with guaranteed maximum cranking power, it recovers 12V batteries starting from 1.25V! With BC Battery Controller products your battery lasts up to 8/10 years.

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