# Monachi

Monachi is an authorized Joinsun NCM lithium battery-cell distributor serving B2B buyers in Cambodia. All product IDs and model names below are stable identifiers. Prices are indicative starting/tier prices in USD; final B2B pricing, availability, shipping, and payment terms require confirmation by Monachi.

Last updated: 2026-09-10T00:00:00.000Z

## Catalog

- Machine-readable catalog (JSON): https://bat.monachi.org/agents/catalog.json
- Catalog API alias (JSON): https://bat.monachi.org/api/agent/catalog
- Structured pricing (markdown): https://bat.monachi.org/pricing.md

## Products

Each product entry lists the uses that suit the cell, then the limit of each use. Read the limit before you size a pack around a use.

- INR18650-42D: NCM 18650 · High Drain, 4200mAh, 3.6V nominal, 4.2V max charge, 12.6A (3C) discharge, 300~500 cycle life, ≤51 g. Indicative starting price $3.74/cell.
  Product page: https://bat.monachi.org/products/inr18650-42d
  Family: 18650 High Drain. A 4200mAh 18650 that still delivers 12.6A continuous. The pick when a slim pack has to run both long and hard.
  - Use: Slim packs that need real run time. Of the 18650 cells Monachi stocks, this one carries the most energy in the smallest footprint — and at 296 Wh/kg it is the densest 18650 in the range. It suits handheld devices where the enclosure is fixed at 18mm and changing the pack shape is not an option.
  - Limit: Do not size a pack around the 4200mAh rating at 12.6A. High continuous current reduces usable capacity — confirm the real duty cycle with Monachi before you commit to a run-time target.
  - Use: Continuous current without a second cell. A 3C continuous rating means one cell can feed a load that would otherwise need two parallel 18650s at full rate. That is fewer cells, less spot-welding, and a simpler BMS. If the load is lighter, 21A is available as a pulse.
  - Limit: 12.6A is the continuous ceiling, not a working average. Sustained operation above that is outside the datasheet window, whatever the pulse figure allows.
  - Use: Devices that get charged often. With a 1C charge rate the cell refills in a little over an hour, which suits gear that is topped up daily rather than cycled to empty.
  - Limit: Cycle life is quoted at 300–500 cycles. If the pack is deep-cycled every day, this is a comfort decision, not a longevity one.
- INR18650-25D: NCM 18650 · High Drain, 2500mAh, 3.6V nominal, 4.2V max charge, 7.5A (3C) discharge, 300~600 cycle life, ≤47 g. Indicative starting price $2.40/cell.
  Product page: https://bat.monachi.org/products/inr18650-25d
  Family: 18650 High Drain. 2500mAh with a 3C continuous discharge and up to 600 cycles. The value pick when the pack simply has to last.
  - Use: Tools and appliances that run daily. The 3C continuous rating puts steady current within reach while the 300–600 cycle window keeps the pack in service longer between rebuilds. That combination is why high-drain 18650s dominate cordless tool packs.
  - Limit: Not an energy cell. A 25D pack holds noticeably less charge than the 42D for the same number of cells — if run time matters more than cycle count, take the 42D.
  - Use: High-current pulses on a budget. A 5C pulse rating covers motor inrush and other brief spikes without forcing you onto a more expensive cell.
  - Limit: Pulse ratings assume a short burst with recovery time. Do not treat 12.5A as a sustained figure — heat builds faster than the casing can shed it.
  - Use: Packs built to a fixed cell count. At no more than 47g and a standard 18650 footprint it drops into existing pack hardware without a redesign, so a rebuild can reuse the same holders, strips, and enclosure.
  - Limit: 191 Wh/kg is the lowest density in the range. Do not choose this where weight is the constraint — that is what the 35E is for.
- INR18650-25P: NCM 18650 · High Power, 2500mAh, 3.6V nominal, 4.2V max charge, 12.5A (5C) discharge, 300~500 cycle life, ≤47 g. Indicative starting price $2.43/cell.
  Product page: https://bat.monachi.org/products/inr18650-25p
  Family: 18650 High Power. The same 2500mAh as the 25D, retuned to a 10C pulse. For motors that demand current the moment you pull the trigger.
  - Use: Motor inrush and stall conditions. A 25A pulse rating gives the pack headroom for the instant a motor starts or binds. Power-tool packs are built around exactly this kind of short, brutal current draw rather than a steady load.
  - Limit: The pulse figure is not a continuous rating. 12.5A is the sustained limit; anything above that is a burst, and the BMS should treat it that way.
  - Use: Impact drivers and high-torque tools. Tools that stall under load punish a cell with repeated current spikes. The extra pulse headroom here means less voltage sag and less heat per event.
  - Limit: Cycle life is the shortest in the 18650 line at 300–500 cycles. High-peak duty costs longevity — that is the trade this cell makes on purpose.
  - Use: Compact high-rate packs. Two of these in parallel comfortably feed a load that would otherwise need a larger format, keeping the pack small enough to stay handheld.
  - Limit: Not a range cell. If the tool runs for hours rather than in bursts, a high-energy cell will deliver more usable work per charge.
- INR21700-60D: NCM 21700 · High Energy, 6000mAh, 3.6V nominal, 4.2V max charge, 12A (2C) discharge, 500~800 cycle life, ≤75 g. Indicative starting price $4.49/cell.
  Product page: https://bat.monachi.org/products/inr21700-60d
  Family: 21700 High Energy. 6000mAh and 288 Wh/kg. Monachi's highest-capacity 21700, for packs where range is the whole point.
  - Use: Long-range e-bikes and scooters. At 288 Wh/kg this is the densest 21700 in the range. E-bike packs live on exactly this tradeoff — more watt-hours per kilogram means more range for the same weight on the frame.
  - Limit: A 2C continuous rating is modest. Do not pair this with a high-power controller or a 10C-class motor; the current ceiling, not the capacity, will be what limits you.
  - Use: Range-first storage packs. 21.6Wh per cell means fewer cells for a given watt-hour target, which cuts weight, wiring, and the number of weld points in the pack.
  - Limit: Not a stationary-storage cell. For daily deep cycling in a solar bank, a chemistry rated for more cycles — and priced per cycle rather than per watt-hour — will serve you better.
  - Use: Power banks and portable stations. High energy density in a 21700 can is what makes high-capacity portable packs possible without a brick-sized enclosure.
  - Limit: Charge current is 6A (1C). Pushing past that shortens the 500–800 cycle window the cell is rated for.
- INR21700-55P: NCM 21700 · High Power, 5500mAh, 3.6V nominal, 4.2V max charge, 16.5A (3C) discharge, 300~500 cycle life, ≤73 g. Indicative starting price $4.04/cell.
  Product page: https://bat.monachi.org/products/inr21700-55p
  Family: 21700 High Power. 5500mAh in a 21700 that still pulses at 44A. High capacity and high power in the same can.
  - Use: High-power tools in a 21700 form factor. An 8C pulse rating on a 5500mAh cell is what lets a 21700 pack replace a larger 18650 array in high-torque tools without losing run time.
  - Limit: Continuous discharge is 3C. This is a burst performer — sustained loads near the pulse figure will heat the cell well past its comfortable window.
  - Use: Compact packs with real punch. Fewer, larger cells mean fewer interconnects and a simpler BMS while keeping peak current high enough for motor-driven gear.
  - Limit: The 300–500 cycle window is the shortest in the 21700 line. Repeated high-peak work wears this cell faster than a high-energy equivalent.
  - Use: Balanced power-to-capacity builds. For packs that need both a respectable watt-hour figure and a strong current ceiling, this sits between the 60D's capacity and the 40T's outright power.
  - Limit: If your application is defined by a continuous current target rather than a burst, choose the cell whose continuous rating meets it — not the one with the biggest pulse number.
- INR21700-40T: NCM 21700 · Drone / High-C, 4000mAh, 3.7V nominal, 4.2V max charge, 45A (11.25C) discharge, 400~1500 cycle life, 69.0 ± 1g. Indicative starting price $3.89/cell.
  Product page: https://bat.monachi.org/products/inr21700-40t
  Family: 21700 Drone / High-C. 4000mAh at 11.25C continuous and 15C pulse. The cell for aircraft and machines that trade run time for thrust.
  - Use: Drone and UAV packs. Multirotors draw their hardest current during takeoff and climb, and packs for that duty are specified around burst C-rate rather than nominal capacity. This cell's 60A pulse rating is built for that profile, and it gets there on 4 mΩ of internal resistance — a fifth of the 18 mΩ the other cells in the range are rated to.
  - Limit: It gives up capacity to get there. At 214 Wh/kg it sits below the high-energy 21700s — for endurance flight where the load is gentle, one of those will fly longer.
  - Use: Continuous 45A draws. An 11.25C continuous rating distinguishes this from the burst-only cells: 45A is a working figure here, not an exception. The datasheet also allows 15C continuous, but only with an 80 °C surface-temperature cut fitted.
  - Limit: The 60A figure needs that temperature cut to be honest. Without it the datasheet rating is 45A, and heat — not the number — is what limits an enclosed pack.
  - Use: RC vehicles and high-draw gear. Anything that converts current into acceleration — cars, boats, aircraft — benefits from a cell whose priority is instantaneous power delivery.
  - Limit: Reported cycle life varies widely with how hard it is pushed, from 400 to 1500 cycles. Confirm your expected duty cycle with Monachi before sizing a pack around the optimistic end.
- INR21700-55E: NCM 21700 · High Energy, 5500mAh, 3.6V nominal, 4.2V max charge, 11A (2C) discharge, 400 cycle life, ≤73.2 g. Indicative starting price $3.60/cell.
  Product page: https://bat.monachi.org/products/inr21700-55e
  Family: 21700 High Energy. 5500mAh tuned for a 2C continuous load. A 21700 for packs that run at a measured pace, all day.
  - Use: Commuter e-bikes and gentle drives. A 2C continuous rating matches how a commuter motor actually behaves — modest, sustained current rather than spikes. E-bike pack engineering is driven by exactly this kind of duty profile.
  - Limit: 400 cycles is the shortest cycle life in the range. If the pack is charged twice a day, budget for replacement sooner than the 60D would need.
  - Use: Fixed-load equipment. When the current draw is known and steady, a cell rated for that figure is a better fit than one bought for pulse headroom it will never use.
  - Limit: Not for motor inrush. There is no high-C reserve here — a stall or hard start will sag the pack. Use the 55P or 40T instead.
  - Use: Weight-sensitive packs. 270 Wh/kg keeps pack weight down without stepping up to the 60D, which matters on anything that has to be carried.
  - Limit: The 0.5C charge rate is gentle by design. Do not add fast charging on the assumption that a higher-capacity cell tolerates it.
- INR21700-50D: NCM 21700 · High Drain, 5000mAh, 3.6V nominal, 4.2V max charge, 15A (3C) discharge, 300~600 cycle life, ≤72 g. Indicative starting price $3.10/cell.
  Product page: https://bat.monachi.org/products/inr21700-50d
  Family: 21700 High Drain. 5000mAh with 15A continuous and a 1C charge rate. The balanced default when no single spec has to win.
  - Use: General-purpose 21700 packs. 5000mAh, 15A continuous, and a faster 1C charge rate than the high-energy cells. Nothing here is extreme, which is what makes it a sane default for a pack with no dominant constraint.
  - Limit: It does not lead on any axis. If range is the goal take the 60D; if peak current is, take the 50P. This is the compromise, deliberately.
  - Use: Devices that charge and discharge often. A 1C charge rate refills the cell about twice as fast as the 0.5C cells, which suits gear that is cycled frequently rather than left to run flat.
  - Limit: Faster charging is still stress. The 300–600 cycle window reflects that, and it is shorter than the equivalent high-energy cells.
  - Use: Balanced power draws. A 5C pulse rating covers routine motor and load spikes without the premium of a dedicated high-power cell.
  - Limit: 25A pulse is not enough for stalled motors or heavy inrush. Size the pack for the spike, not for the average, and check it against this ceiling.
- INR21700-50P: NCM 21700 · High Power, 5000mAh, 3.6V nominal, 4.2V max charge, 15A (3C) discharge, 300~800 cycle life, 70 ± 1g. Indicative starting price $3.26/cell.
  Product page: https://bat.monachi.org/products/inr21700-50p
  Family: 21700 High Power. 5000mAh at 3C continuous but 40A pulse — eight times its nominal current in short bursts.
  - Use: Torque-critical power tools. An 8C pulse rating on a 5000mAh cell gives high-torque tools the current spike they need at startup without dropping to a smaller format.
  - Limit: Continuous discharge is only 3C. Despite the impressive pulse figure this is not a high-current continuous cell — keep the sustained load well below the burst rating.
  - Use: Packs with intermittent heavy loads. Equipment that idles and then spikes — pumps, winches, impact tools — is the natural home for a cell with a wide gap between its continuous and pulse limits.
  - Limit: Do not size refrigeration or continuous-duty loads against the pulse number. If the load never rests, the 40T is the honest choice.
  - Use: Keeping capacity while adding headroom. You get the same watt-hours as the 50D with a much higher burst ceiling, so a pack can gain peak capability without losing run time.
  - Limit: The 300–800 cycle window sits at the lower end. Peak current is paid for in longevity, as it is across this whole family.
- INR18650-35E: NCM 18650 · High Energy, 3500mAh, 3.6V nominal, 4.2V max charge, 10.5A (3C) discharge, 500~1000 cycle life, ≤49 g. Indicative starting price $2.77/cell.
  Product page: https://bat.monachi.org/products/inr18650-35e
  Family: 18650 High Energy. 3500mAh in an 18650 at 250 Wh/kg. Maximum run time in the smallest cell format Monachi stocks.
  - Use: Weight-constrained portable gear. At 250 Wh/kg this carries more charge per gram than any other 18650 here. Where the device is worn or carried, that density is worth more than peak current.
  - Limit: A 3C continuous rating is the lowest in the 18650 line. This cell will not feed a hard-driving motor — pick the 25D or 42D for that.
  - Use: Long, gentle duty cycles. Running well inside the current ceiling at 500–1000 cycles is the least stressful way to use an 18650, and it is how this cell is meant to be used.
  - Limit: Low current is the precondition, not an option. Ask this cell for high current and you lose both usable capacity and the cycle life that made it attractive.
  - Use: Sensor and standby packs. Low, steady loads held for months are where energy density converts directly into time between charges.
  - Limit: There is a 17.5A pulse ceiling, so no inrush tolerance. Any load with a hard start needs a different cell in the pack.
- INR26750-100: NCM 26750 · High Capacity, 10000mAh, 3.6V nominal, 4.2V max charge, 20A (2C) discharge, 300~500 cycle life, ≤118 g. Indicative starting price $5.68/cell.
  Product page: https://bat.monachi.org/products/inr26750-100
  Family: 26750 High Capacity. 10000mAh and 36Wh from a single 26750 cell. For packs where watt-hours per weld point is the metric that matters.
  - Use: Cutting the cell count. At 36Wh per cell this carries roughly 1.7 times the energy of a 21700. Fewer cells means fewer spot welds, less nickel strip, and a smaller BMS channel count for the same total capacity.
  - Limit: The 26750 is a less common format. Before designing one in, confirm holder, spacer, and enclosure availability — the electrical gain is real, the mechanical ecosystem is not as mature as 21700.
  - Use: High-capacity portable storage. A 2C continuous rating is comfortably above what a portable power station or storage module needs, so the capacity advantage comes without a current penalty at that duty.
  - Limit: Do not treat this as a cycling champion. At 300–500 cycles it is not a substitute for a chemistry built for daily deep discharge in a fixed solar bank.
  - Use: Low-stress, high-energy builds. Where the load is modest and the goal is simply to move the most watt-hours in the fewest cells, this is the densest option available at 305 Wh/kg.
  - Limit: Weight is up to 118g per cell — more than double a 21700. On a mobile application the larger can may cost more in total pack mass than the reduced cell count saves.

## Pricing semantics

All prices are indicative_tier_price: indicative only, never final, and not payable through this site. Tier prices apply at quantity thresholds (400+ and 1000+). Final pricing, availability, shipping, and payment terms always require Monachi confirmation.

## Availability semantics

Catalog presence does not imply stock. Local availability is not published numerically; agents must use the availability field from the machine-readable catalog JSON, which returns status "request_confirmation".

## B2B quote workflow

Buyers (or their AI agents) build a quote draft locally using the WebMCP tools (create_quote_draft, add/update/remove_quote_item, get_quote_draft). Nothing is sent automatically. The final step, generate_quote_link, returns a hosted quotation page URL (with a Print / Save as PDF option) plus Telegram, WhatsApp, and email links for the buyer to activate. A quote request is not an order and no payment is processed.

## Contact

- Email: info@monachi.org
- WhatsApp: +855 9333 0036
- Telegram: https://t.me/+85593350934