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BigBattery | 100A DC | 40-60V Battery | Chargeverter (AC-to-DC Charger) | INV037 | UL Listed

BigBattery

$624.99
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SKU:
INV037
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The EG4 Chargeverter Plus is an AC-to-DC battery charger. It sits between a generator (or AC utility source) and your battery bank, converting AC power into regulated DC charging current — it does not invert DC to AC, and it does not connect to solar panels.

Architecturally, this is a Chargeverter: an AC-to-DC battery charger, not an inverter and not a hybrid solar inverter. It has no AC output for running loads and no PV/MPPT input. It is UL Listed. Note: If you would like to review the manufacturer Product Specifications, Warranty, Brochure, etc., for this system, please refer to the "Resources (System Manuals and Warranty)" Tab above on this page.

  • AC Input Voltage: 120 / 208 / 240 VAC, 50-60 Hz — best performance at 240VAC.
  • DC Battery Voltage: 40-60V (nominal 48V lithium banks).
  • Max Charging Current: 100A DC. Continuous charging is 50A at 120VAC input and 100A at 240VAC input — these are separate ratings, not surge figures.
  • Idle Consumption: ~4W.
  • Does NOT invert DC to AC — no AC output for loads.
  • Does NOT accept solar/PV input — no MPPT.
  • NOT compatible with 12V or 24V battery banks.
  • NOT capable of grid sell-back.
Pro-Installer Tip: Budget and portable generators often produce "dirty" AC power with voltage and frequency fluctuations that trip charger fault codes or cause erratic charging behavior. Before commissioning, verify generator output stability with a digital multimeter across at least two start/stop cycles, checking that voltage stays within the Chargeverter's 120/208/240VAC input window and frequency holds in the 50-60Hz range. Confirm the dry-contact wiring for automatic generator start is landed on the correct terminals per the included dry contact cable, and set warm-up/cool-down timers so the generator stabilizes under load before the charger begins pulling current — this prevents nuisance charging errors and premature generator wear. Document the installation per NEC Article 706 (Energy Storage Systems) since this unit is charging a battery bank, and torque all 4 AWG battery cable lugs to the manufacturer's spec with a calibrated torque wrench to avoid resistive heating at the DC terminals.
  • Wide AC input range (120/208/240VAC) accommodates generator or grid-tie AC sources without a separate transformer.
  • Closed-loop CAN/RS485 communication enables SOC-based charging with compatible lithium batteries, reducing overcharge risk.
  • Built-in dry contacts support two-wire automatic generator start/stop, with programmable warm-up and cool-down.
  • Integrated breaker allows fast output shutdown for equipment protection.
  • IP54 enclosure rating protects against dust and moisture in garage, shop, or outdoor-adjacent installs.
  • Low idle draw (~4W) limits parasitic consumption when the charger is connected but not actively charging.
SpecValueUnit
Max Charging Current100A DC
Continuous Charging Current (120VAC input)50A
Continuous Charging Current (240VAC input)100A
AC Input Voltage120 / 208 / 240VAC
AC Frequency50-60Hz
DC Battery Voltage Range40-60V
CommunicationCAN / RS485
Idle Consumption~4W
Max Altitude9,843 (3,000)ft (m)
Enclosure RatingIP54

Note: See "Resources (System Manuals and Warranty)" Tab above for full specifications.

  • Compatible with 48V nominal lithium battery banks within the 40-60V range.
  • Closed-loop communication (CAN/RS485) supported with compatible lithium batteries for SOC-based charge control.
  • Works with generator or utility AC input at 120, 208, or 240VAC — best performance at 240VAC.
  • NOT compatible with 12V or 24V battery banks.
  • NOT an inverter — provides no AC output for running household or shop loads.
  • NOT a solar charge controller — no PV/MPPT input accepted.
  • NOT capable of grid sell-back or grid-interactive operation.
  • Parallel/stacking capability: [NEEDS VERIFICATION] — not specified in manufacturer data provided.
CategoryDetail
Safety ListingUL Listed
Enclosure RatingIP54 (dust and moisture protection)
Applicable NEC ReferenceArticle 706 (Energy Storage Systems) — installer to verify local AHJ requirements
Max Operating Altitude9,843 ft (3,000 m)

Frequently Asked Questions

Can this unit sell power back to the grid?
No. The EG4 Chargeverter Plus is a Chargeverter — an AC-to-DC battery charger only. It has no grid sell-back capability and does not invert DC power to AC.

What battery voltage is required?
It supports 40-60V battery banks (nominal 48V lithium systems). It is not compatible with 12V or 24V battery banks.

Can I parallel multiple units together?
[NEEDS VERIFICATION] Parallel/stacking capability for the Chargeverter Plus is not specified in manufacturer data provided.

Is this UL 1741 listed for utility interconnection?
The Chargeverter Plus is UL Listed for safety and compliance. UL 1741 governs grid-interactive inverters; since this unit is a Chargeverter (AC-to-DC charger only, not grid-interactive), UL 1741 does not apply. Specific UL standard number is [NEEDS VERIFICATION].

Does it work with solar panels directly?
No. This device has no PV/MPPT input. It charges batteries from AC power sources (generator or grid AC), supplementing — not replacing — a solar charging system.

Warranty & Registration

Manufacturer warranty terms for the EG4 Chargeverter Plus are [NEEDS VERIFICATION] — refer to the "Resources (System Manuals and Warranty)" Tab above on this page for the manufacturer's warranty document and registration steps. Ask us before you order if you need the warranty terms confirmed for your specific application.

Wholesale Specifications & Compliance Guarantee

Official MSSD Direct Distribution Data for BigBattery Item #INV037

🚚 Wholesale Freight Shipping Structure

  • Palletized Freight Delivery: Securely packaged and strapped to prevent coil or cabinet transit damage.
  • Liftgate Unloading Included: Every system price reflects complete residential or jobsite liftgate unloading services.
  • Terminal Tracking: Direct carrier tracking with scheduled delivery appointment confirmation.

🛡️ EPA Refrigerant & Safety Compliance

  • Low-GWP Mandate Certified: Compliant with 2025–2026 EPA AIM Act guidelines (R-454B / R-32 next-gen refrigerants).
  • Factory Parts Protection: Full manufacturer warranty integrity preserved via authorized wholesale distribution channels.
  • Factory Pre-Charged: Outdoor condensing units engineered and tested for rated line-set lengths.

📜 Manufacturer Warranty Protection

Authorized Dealer Warranty Protection: All BigBattery systems purchased through MSSD include full factory manufacturer warranty coverage.

📊 System Engineering & Performance Specifications

Product Model Title BigBattery | 100A DC | 40-60V Battery | Chargeverter (AC-to-DC Charger) | INV037 | UL Listed
Factory SKU / Part # INV037
Brand Entity BigBattery
Wholesale Freight Rate $0.00 (Palletized Liftgate Unloading Included)