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LG

LG M58T INR21700-M58T 5800mAh 12.5A Cell | Highest Capacity 21700

LG M58T INR21700-M58T 5800mAh 12.5A Cell | Highest Capacity 21700

€3,95
€3,95
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What is the LG M58T INR21700 cell used for?

The LG INR21700-M58T (M58T) cell is currently one of the highest-capacity 21700 standard cells. With a capacity of 5800 mAh and a maximum discharge current of 12.5 A, it is ideal wherever range and long operating time are a priority:

  • ? Electric bicycles (e-bike) – 36 V and 48 V packs. A 10S2P pack (20 cells) = ~418 Wh, range up to 40+ km.
  • ? Electric scooters – high capacity with low pack weight.
  • ? Renewable energy storage (ESS) – photovoltaic energy buffering systems, operating range −20°C to 60°C.
  • ? Tactical and outdoor flashlights – long operating time, wide temperature range.
  • ?️ DIY battery packs – a popular choice for custom 21700 nS/mP projects.
  • ♻️ E-mobility battery regeneration – replacing worn-out cells with higher capacity ones.

LG INR21700-M58T Technical Specifications

Model INR21700-M58T
Technology Li-Ion NMC+ (Li(Mn,Ni,Co,Al)O₂)
Format 21700 (⌀21.4 mm × 70.5 mm)
Nominal capacity 5800 mAh
Minimum capacity 5570 mAh
Minimum energy 20.0 Wh
Nominal voltage 3.59 V
Max. charging voltage 4.20 V
Cut-off voltage 2.50 V
Standard charging current 1120 mA (CC-CV)
Max. charging current 2700 mA (4.20 V) · 5000 mA (4.0 V)
Max. continuous discharge current 12.5 A (0–35°C) · 10 A (35–45°C) · 7.5 A (45–60°C)
Pulse discharge current 15 A (15 s, 0–60°C)
Operating temp. – charging 0°C to 50°C
Operating temp. – discharging −20°C to 60°C
Cycle life ≥80% capacity after 500 cycles
Weight 73 g
Protection Unprotected – requires BMS
Certifications UN38.3, UL1642, IEC/UL62133-2, CB, PSE

LG M58T vs competition – which one to choose?

Cell Capacity Max. current For whom?
LG M58T INR21700 ← This product 5800 mAh 12.5 A E-bike, ESS – max range
Samsung 50S INR21700 4900 mAh 35 A Power tools, high current
BAK 21700CG-50 5000 mAh 15 A ESS, moderate current
EVE INR21700-40P 4000 mAh 40 A EV high-drain
Samsung 35E INR18650 3500 mAh 8 A 18650 format, low current

Conclusion: If maximum range at currents up to 12.5 A is a priority – the LG M58T is unrivalled in the 21700 standard.

Do you need a ready-made battery instead of cells?

The LG M58T cell is a great choice for building your own pack. However, if you are looking for a ready-made solution – check out our batteries:

Safety – important before use

  • ⚠️ Unprotected cell – always use a BMS in the pack
  • ⚠️ Do not exceed charging voltage of 4.20 V
  • ⚠️ Do not discharge below 2.50 V
  • ⚠️ Charge on a fire-resistant surface, do not leave unattended
  • ⚠️ Dispose of in accordance with WEEE regulations

What is the voltage of the LG M58T cell?

Nominal voltage: 3.59 V. Max. charging voltage: 4.20 V. Cut-off voltage: 2.50 V. Compatible with devices for 3.6–3.7 V cells.

How many LG M58T cells do I need for an e-bike?

36V 10S2P = 20 cells (~418 Wh, range ~40 km). 48V 13S2P = 26 cells (~557 Wh). 48V 13S4P = 52 cells (~1114 Wh, range 80–100 km).

How does the LG M58T differ from the Samsung 50E?

The LG M58T has a higher capacity (5800 vs 4930 mAh) and a higher max. discharge current (12.5 vs 10 A). A better choice where pack range is key.

How long does an LG M58T cell take to charge?

At 1120 mA – approx. 5.5–6 hours. At fast charging 2700 mA – approx. 2.5 hours. A CC-CV charger with a 4.20 V cut-off is required.

Is the LG M58T cell original?

Yes. CityLion only sells factory cells from certified distributors. Upon request, we provide UN38.3 and UL1642 certificates.

Do you ship Li-Ion cells abroad?

Yes, we ship throughout Europe. Shipments are packaged in accordance with ADR/IATA Class 9. Delivery 2–5 business days.

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