Skip to content

ICON Electric Vehicles i40FS-HD Replacement Battery

ICON Electric Vehicles document an Eco Battery pack (70.4V) for the i40FS-HD. Specifications and any replacement options are below, each with its source.

Last updated: 10 October 2026

ecobattery.com/products/70v-105ah-lifepo4-battery

The battery for this vehicle

70V 105Ah LiFePO4 Gen3

SKU A-070105-06

OEM
Energy
7,392Wh

Source: ecobattery.com/cdn/shop/files/70V_105Ah_heated_Data_Sheet.pdf

Why this pack is listed for the i40FS-HD

“Battery: 70V/105Ah Eco Lithium”

The manufacturer's own statement for this pack. Reported, not endorsed — confirm with the manufacturer before buying or fitting.

Only ICON name this pack for this model and give no alternative — the HD models carry no lead-acid option at all, where the rest of their range leads with one. ICON's own FAQ says Eco Battery is “the exclusive factory-installed lithium battery brand on all 2025 ICON EV models and newer”, and this sheet was last revised in October 2023, so an earlier cart may have left the factory with something else. Check yours before buying.

Maker lists it as a direct fit. ICON list this pack for this vehicle in their own specification sheet and name no alternative, so no adapter, no bracket and no charger change is implied — it is what the vehicle is built to take. One pack replaces the six or eight lead-acid batteries their other models carry.

Full specifications, sources and every vehicle this pack fits.

View battery: 70V 105Ah LiFePO4 Gen3 →

Source for these specifications

  • ICON Electric Vehicles — i40FS-HD spec sheet, revised 10/09/2023Manufacturer document

    ICON Electric Vehicles

    Source: iconev.com/wp-content/uploads/2023/10/ICON-Golf-Cart-i40FS-HD-Spec-Sheet.pdf

    Retrieved September 15, 2026

Replacement options from other makers

Manufacturer documentation names the cart's brand, not this specific model, year or trim. This is not confirmation that this exact cart is compatible — see the scope below.

“The Power Queen 36V 100Ah Lithium battery is engineered for golf carts, offering perfect compatibility with leading brands such as Club Car, EZGO, ICON, and Yamaha.”

Only ICON named as a brand by Power Queen — not the i40FS-HD by model, year or trim. Check yours before buying.

Sources do not establish: WHICH ICON MODEL. Power Queen name ICON as a brand their pack works with and name no specific model, year or trim for it in that statement, so this is not a claim about the i40FS-HD in particular. Also not established: this cart's system voltage against the pack's, the battery compartment it would need to fit, the continuous and peak discharge its controller demands against what this pack's BMS delivers, and whether the i40FS-HD's charger is safe for this chemistry.

Power Queen name ICON as one of the cart brands this pack is for, with no model, year or trim attached to that name: a brand named in general on Power Queen's own product page, not a fitment stated for this particular cart.

Source: ipowerqueen.com/collections/all/products/power-queen-36v-100ah-smart-lifepo4-battery

“Universal Compatibility Reliable power for all major golf cart brands. Rest assured that our batteries are compatible with Club Car, E-Z-GO, Yamaha, ICON and more of your favorite trusted brands.”

Only ICON named as a brand by BigBattery — not the i40FS-HD by model, year or trim. Check yours before buying.

Sources do not establish: Which Icon model. BigBattery name ICON as a brand their pack works with and name no specific model, year, trim or controller rating in that statement — so this is not a claim about the i40FS-HD in particular. Also not established: this cart's system voltage against the pack's, the battery compartment it would need to fit, the continuous and peak discharge its controller demands against what this pack's BMS delivers, and whether the i40FS-HD's charger is safe for this chemistry — none of it is addressed by a brand-list statement.

BigBattery name ICON as one of the golf cart brands their pack is sold for, with no model, year or trim attached to that name — a brand named in general on BigBattery's own product page, not a fitment stated for this particular cart.

Source: bigbattery.com/golf-carts

Compatible chargers

Neither manufacturer names the other. One publishes what the device requires, the other publishes what the battery does, and the two are compared here, including wherever they do not meet.

“OnePack 72V 105Ah Lithium Battery Pack”

Only a 70-volt system, which is ICON's figure for this cart; Trojan call this pack 72 volts — check yours before buying.

Sources do not establish: Everything except the voltage. Trojan names one cart anywhere in their own material — the E-Z-GO RXV Gen 1 ELiTE — and it is not this one. Whether the pack physically fits this cart's battery bay is unestablished: Trojan publishes dimensions (544 x 357 x 270 mm) and ICON do not publish a bay size to compare them against. Whether the cart's existing charger suits it is unestablished, and whether the cart's controller, onboard computer or CAN system accepts a single pack where a string of smaller batteries used to be is also unestablished. A matching voltage is the start of this question, not the end of it.

Two first-party figures compared, with neither company naming the other: this cart's maker states a 70-volt system and Trojan states a 72-volt 105 Ah pack. A single pack replacing a string changes the arrangement as well as the chemistry — where a cart carried six or eight batteries wired in series, this is one. Recorded at the comparison tier because that is all the agreement of two numbers supports.

Source: trojanbattery.com/products/onepack-72v-105ah-lithium-battery-pack

Sources

  • Power Queen 36V 100Ah Smart Deep Cycle Lithium BatteryManufacturer model page

    Power Queen

    Source: ipowerqueen.com/collections/all/products/power-queen-36v-100ah-smart-lifepo4-battery

    Retrieved October 4, 2026

  • BigBattery — golf cart fitment statementManufacturer general page

    BigBattery

    Source: bigbattery.com/golf-carts

    Retrieved September 15, 2026

  • Trojan Battery Company — OnePack 72V 105Ah Lithium Battery PackManufacturer battery page

    Trojan Battery Company

    Source: trojanbattery.com/products/onepack-72v-105ah-lithium-battery-pack

    Retrieved September 15, 2026

  • Eco Battery 51V 105Ah Skinny LiFePO4 Gen3Manufacturer model page

    Source: ecobattery.com/products/51v-105ah-lifepo4-battery-skinny

    Retrieved September 16, 2026

  • Eco Battery — 70V 105AH Battery Bundle / EZGO TXTManufacturer battery page

    Source: ecobattery.com/products/70v-105ah-battery-bundle-ezgo-txt

    Retrieved September 16, 2026

  • Eco Battery — 70V 105 Ah heated Data SheetManufacturer document

    Eco Battery

    Source: ecobattery.com/cdn/shop/files/70V_105Ah_heated_Data_Sheet.pdf

    Retrieved September 15, 2026

  • BigBattery — 72V 15A Charger (86.4V DC) – Ring TerminalsManufacturer model page

    BigBattery

    Source: bigbattery.com/products/72v-15a-charger-86-4v-dc-ring-terminals

    Retrieved September 24, 2026

Related pages