Battery Tender® WaveCharge Pro 3-Bank 12V, 30 AMP Battery Charger

Three banks. 10 Amps each. 30 Amps total. The Battery Tender® WaveCharge Pro 3-Bank delivers high-output independent charging to three separate marine battery banks simultaneously — with UL marine ignition protection for engine room installation, full Multi-Chemistry support for lead-acid and Lithium, and ISM (Infinite Sequential Monitoring™) managing each bank's full 4-stage charge cycle independently.

10 Amps Per Bank on Three Independent Circuits

Each of the three banks operates as a complete independent 10 Amp charging circuit. No output is shared between banks. A bank recovering a depleted trolling motor battery at full 10 Amps bulk charge does not reduce the output available to the two banks in float maintenance on fully charged starting and house batteries. Three batteries charged simultaneously at full output, each at its own charge stage.

UL Marine Ignition Protection

Certified to not produce ignition-capable sparks during normal operation or connection in the presence of fuel vapors. The WaveCharge Pro 3-Bank meets the independent certification requirement for charging devices installed in enclosed marine spaces near fuel systems — engine rooms, fuel-adjacent bilge compartments, and any location where ignition-protected equipment is mandatory.

Multi-Chemistry: Lead-Acid and Lithium Per Bank

Each bank has its own chemistry selector. A boat running a lead-acid starting battery, a Lithium house bank, and a lead-acid trolling motor battery configures each bank independently — the correct ISM absorption voltage and float protocol for each chemistry at full 10 Amps output.

ISM: 4-Stage Charging on All Three Banks at 10 Amps

• Initialization — Individual health check on each bank before current flows
• Bulk Charge — Full 10 Amps output per bank restores depleted capacity rapidly
• Absorption — Current tapers per bank independently as each battery approaches full charge
• Float Maintenance — Correct protocol for lead-acid or Lithium on each bank, 24/7, indefinitely

Compatible per bank: 20Ah to 200Ah at 12V. Lead-acid: flooded, AGM, gel cell, sealed MF. Lithium: LiFePO4.

Applications

• Cruising and offshore boats with three-bank systems requiring fast recovery
• Boats with separate high-capacity starting, house, and auxiliary battery banks
• Commercial and charter boats requiring rapid overnight battery recovery
• Liveaboard boats with large Lithium house banks alongside lead-acid service batteries
• Any three-bank marine application requiring UL marine ignition protection and high output

Automatic Temperature Compensation

All three banks adjust charge voltage automatically based on ambient temperature for lead-acid applications — correct charging across all three banks in any marina or offshore environment.

Safety Features

• UL marine ignition protection — certified for enclosed marine and fuel vapor environments
• Spark-proof connection on each bank
• Reverse polarity protection per bank
• Short-circuit protection per bank
• IP67+ sealed housing

2-Year Limited Warranty | DeLand, Florida Since 1965