L-FLEX BATTERY PACKS

Six packs. Real specs. Pick honestly.

Every number below comes off the datasheet, not the marketing floor. All packs are 51.2 V drop-ins built and certified on IMECAR's own line, managed by the IM-P150 — the BMS family from our commercial EV platforms.

L-FLEX 5.4 Club

L-FLEX 5.4 Club

$1,990

The essential lithium upgrade. Full 5.4 kWh in the classic tray footprint.

  • 5.4 kWh
  • 51.2 V
  • 3,500 cycles
Details

Pay monthly at checkout · Affirm & Klarna

10-year limited warranty · Free FL & GA shipping · Next-business-day dispatch

L-FLEX 5.4 Club Slim

L-FLEX 5.4 Club Slim

$1,990

Same 5.4 kWh in a long, narrow profile for tight battery bays.

  • 5.4 kWh
  • 51.2 V
  • 3,500 cycles
Details

Pay monthly at checkout · Affirm & Klarna

10-year limited warranty · Free FL & GA shipping · Next-business-day dispatch

L-FLEX 5.4 Pro

L-FLEX 5.4 Pro

$2,149

Our full 5,000-cycle rating plus SmartDash live monitoring from your phone.

  • 5.4 kWh
  • 51.2 V
  • 5,000 cycles
  • SmartDash
Details

Pay monthly at checkout · Affirm & Klarna

10-year limited warranty · Free FL & GA shipping · Next-business-day dispatch

L-FLEX 5.4 Pro Slim

L-FLEX 5.4 Pro Slim

$2,149

The Pro pack in the slim profile — 5,000 cycles, SmartDash included.

  • 5.4 kWh
  • 51.2 V
  • 5,000 cycles
  • SmartDash
Details

Pay monthly at checkout · Affirm & Klarna

10-year limited warranty · Free FL & GA shipping · Next-business-day dispatch

L-FLEX 9.2 Max

L-FLEX 9.2 Max

$3,109

Near-double range for long days, hills and heavier carts.

  • 9.2 kWh
  • 51.2 V
  • 5,000 cycles
  • SmartDash
Details

Pay monthly at checkout · Affirm & Klarna

10-year limited warranty · Free FL & GA shipping · Next-business-day dispatch

L-FLEX 10.5 Ultra

L-FLEX 10.5 Ultra

$3,590

Maximum energy. The longest-range pack in the L-FLEX family.

  • 10.5 kWh
  • 51.2 V
  • 5,000 cycles
  • SmartDash
Details

Pay monthly at checkout · Affirm & Klarna

10-year limited warranty · Free FL & GA shipping · Next-business-day dispatch

Compare the lineup.

Model
5.4 Club
5.4 Club Slim
5.4 Pro
5.4 Pro Slim
9.2 Max
10.5 Ultra
Price$1,990$1,990$2,149$2,149$3,109$3,590
Energy5.4 kWh5.4 kWh5.4 kWh5.4 kWh9.2 kWh10.5 kWh
Capacity105 Ah105 Ah105 Ah105 Ah180 Ah206 Ah
Nominal voltage51.2 V51.2 V51.2 V51.2 V51.2 V51.2 V
Rated cycle life3,500 cycles3,500 cycles5,000 cycles5,000 cycles5,000 cycles5,000 cycles
SmartDashIncludedIncludedIncludedIncluded
Length15.75 in / 400 mm25.59 in / 650 mm15.75 in / 400 mm25.59 in / 650 mm26.18 in / 665 mm26.18 in / 665 mm
Width15.39 in / 391 mm10.67 in / 271 mm15.39 in / 391 mm10.67 in / 271 mm15.39 in / 391 mm15.39 in / 391 mm
Height9.61 in / 244 mm9.61 in / 244 mm9.61 in / 244 mm9.61 in / 244 mm9.61 in / 244 mm9.61 in / 244 mm
Weight99.21 lbs / 45 kg99.21 lbs / 45 kg99.21 lbs / 45 kg99.21 lbs / 45 kg182.98 lbs / 83 kg182.98 lbs / 83 kg

Free freight shipping to Florida and Georgia — other states calculated at checkout. Every order dispatches from Miami the next business day. Prices excl. tax · 10-year limited warranty · Secure checkout by Stripe · Affirm & Klarna available.

SPEC HONESTY

The amp race is marketing.

Battery brands love big discharge numbers. Here's what they don't say: your cart can only use what its motor and controller can draw. A stock cart motor is 2.2–5 kW — roughly 43–98 A continuous at 51.2 V. Amps beyond that aren't performance. They're a headline.

L-FLEX delivers 300 A continuous and 550 A for 5 s — about 3× what a stock motor pulls, and still around 1.5× even an upgraded motor-and-controller kit, managed by a BMS accurate to ±0.8 mV per cell. Enough for any hill, any load, any controller you'll realistically bolt on. We publish the datasheet; check the math yourself.

Stock cart motor draws43–98 A
2.2–5 kW at 51.2 V
Upgraded motor + controllerup to ~200 A
aftermarket high-torque kits
L-FLEX continuous300 A
sustained, thermally managed
L-FLEX peak550 A (5 s)
loaded hill starts

BEFORE YOU BUY — FROM ANYONE

Four questions that expose a sticker brand.

Ask these of every battery company — including us. A real manufacturer answers all four in writing.

Who manufactures the pack — and can you show me the factory?

Many "US brands" are generic imported packs with a logo. IMECAR builds cells-to-pack on its own line — robotic assembly, laser welding, end-of-line testing. Photos and video are on this site because it's our factory.

Will you exist in year 8 of my 10-year warranty?

A warranty is only as durable as the company behind it. IMECAR has engineered battery systems for OEMs — carts, buses, boats — since long before selling direct, and the US operation is backed by the manufacturer, not a marketing LLC.

Can I see the full datasheet, not the highlights?

Every L-FLEX spec on this page is the datasheet number, including the unflattering ones like weight. If a brand only publishes the numbers that sell, ask why.

Are the reviews real?

We're new to direct US sales, so we don't have thousands of five-star reviews — and we won't buy them. What we have is verifiable: OEM partnerships since 2016, an Edison Award, Bureau Veritas certification, and a factory you can look at.

L-FLEX vs. the sticker brands.

IMECAR L-FLEXTypical imported brand
Who builds itIMECAR — own robotic factory, cells to packA contract factory; often only the logo is theirs
Warranty, year 8Honored by the manufacturer's own US entity in MiamiDepends on a marketing company still existing
DocumentationFull datasheets & manuals, no email wallHighlights that sell; details on request, maybe
Battery managementIM-P150 — EV-grade, ±0.8 mV cell accuracy, named & documentedUnnamed "smart BMS"
Cell sensingLaminated flex-circuit, every cell (co-engineered with Bosch Copperdot®)Loose wires that fatigue and drift
CoolingDouble-wall aluminium enclosure — passive air channels on three sides, no fansSealed box; the heat has nowhere to go
MonitoringSmartDash live telemetry (Pro and up)Often a basic Bluetooth voltage app, or nothing
Track recordOEM supplier since 2016 · Edison Award 2024Founded a few years ago, history unclear
ProofFactory footage, certificates in writing, published specsFive-star review widgets

A generalization — honest exceptions exist. Ask any brand the four questions above and you'll find them.

Every pack, in detail.

L-FLEX 5.4 Pro

L-FLEX 5.4 Pro

$2,149

Our full 5,000-cycle rating plus SmartDash live monitoring from your phone.

Energy
5.4 kWh
Capacity
105 Ah
Voltage
51.2 V
Cycle life
5,000
Weight
99.21 lbs
BMS
IM-P150
15.75 in / 400 mm (L) · 15.39 in / 391 mm (W) · 9.61 in / 244 mm (H)SmartDash included

Pay monthly at checkout · Affirm & Klarna

10-year limited warranty · Free FL & GA shipping · Next-business-day dispatch

L-FLEX 5.4 Pro Slim

L-FLEX 5.4 Pro Slim

$2,149

The Pro pack in the slim profile — 5,000 cycles, SmartDash included.

Energy
5.4 kWh
Capacity
105 Ah
Voltage
51.2 V
Cycle life
5,000
Weight
99.21 lbs
BMS
IM-P150
25.59 in / 650 mm (L) · 10.67 in / 271 mm (W) · 9.61 in / 244 mm (H)SmartDash included

Pay monthly at checkout · Affirm & Klarna

10-year limited warranty · Free FL & GA shipping · Next-business-day dispatch

L-FLEX 10.5 Ultra

L-FLEX 10.5 Ultra

$3,590

Maximum energy. The longest-range pack in the L-FLEX family.

Energy
10.5 kWh
Capacity
206 Ah
Voltage
51.2 V
Cycle life
5,000
Weight
182.98 lbs
BMS
IM-P150
26.18 in / 665 mm (L) · 15.39 in / 391 mm (W) · 9.61 in / 244 mm (H)SmartDash included

Pay monthly at checkout · Affirm & Klarna

10-year limited warranty · Free FL & GA shipping · Next-business-day dispatch

Straight answers.

+Will it fit my cart?

L-FLEX is a 51.2 V drop-in for 48 V-class carts, in three footprints: standard (15.75 × 15.39 in), slim (25.59 × 10.67 in) for narrow trays, and the larger 26.18 × 15.39 in bay used by the 9.2 Max and 10.5 Ultra. Check the dimensions against your battery bay, or use the Fit Finder and we'll recommend the right pack.

+Club or Pro — what am I actually paying for?

SmartDash, and a higher official rating. Pro includes the SmartDash live-monitoring hardware and carries our full 5,000-cycle rating. Club is the same IMECAR build, conservatively rated at 3,500 cycles — we rate it below what the hardware is capable of, and we'd rather surprise you in that direction. Same voltage, same footprint, same warranty.

+Who actually manufactures this battery — and where?

IMECAR does — cells to modules to pack to the electronics that manage it, designed and built in IMECAR's own factory in Antalya, Türkiye, on the same certified line (CE, UN 38.3, ISO 9001/14001/45001 by Bureau Veritas) that builds packs for buses, boats and commercial EVs. Shipped, supported and warrantied from Miami, FL. We tell you where it's made because we're proud of the factory — ask any other brand the same question.

+What does the 10-year warranty cover, and who honors it?

IMECAR in Miami, Florida — the manufacturer's own US entity — honors it for the original purchaser. Register within 30 days of purchase for the full ten years (unregistered packs get one year). Years 0–5 are free repair-or-replace; years 5–8 and 8–10 offer replacement at 50% / 75% of the then-current price. The complete document is a free PDF on our Support page — we publish our fine print before you ask.

+Do I need a charger?

You need a lithium charger that matches the charge spec in the Owner's Manual. Already own a certified, spec-compatible one? That works. But most chargers on the market aren't certified for this pack, and damage from incorrect charging isn't covered by the warranty. Ours are matched, tested, and the ones we trust 100%: 15 A ($250, the standard choice) or 25 A ($280, faster — worth it on the 9.2 and 10.5 packs).

+What does shipping cost?

Free freight shipping to Florida and Georgia for website orders — where we expect most of our customers — with other states calculated at checkout. Every order dispatches from our Miami warehouse the next business day. (Dealer orders run on separate terms.)

+What if it doesn't fit or I change my mind?

You have 30 days from delivery to return an uninstalled pack in its original packaging for a refund, minus a 10% restocking fee; you cover return freight and we'll issue an RMA and instructions. If it arrives damaged or we sent the wrong pack, that's on us — tell us within 48 hours and we replace it, freight included. Installed or used packs can't be returned, but they're covered by the 10-year warranty. Not sure it'll fit? Use the Fit Finder and measure your bay first — honest sizing beats a return label.

+What do I do with my old lead-acid batteries?

Lead-acid is one of the most recycled products in the US — most auto parts stores and scrap yards accept golf cart batteries, and many pay a core value for them. You may finish the swap a few dollars ahead.

+A competitor advertises more amps. Is that better?

Only if your motor can draw them. Stock cart motors are 2.2–5 kW — roughly 43–98 A continuous at 51.2 V. L-FLEX delivers 300 A continuous and 550 A for 5 seconds: about 3× what a stock motor pulls, and still around 1.5× even an upgraded motor-and-controller kit. Amps beyond what your controller can pull are a number on a landing page, not performance.