14.8V · 4S · 21000mAh · 7C
Lithium Ion Solid State UAV mission pack · 310.8 Wh · 5C continuous / 7C burst
Product nameGenX Pro+ Solid State 14.8V 4S 21000mAh 7C Premium Lithium-Ion Solid State Rechargeable Battery 350Wh/kg
CautionSustaining 5C costs about 4% of rated capacity.
The catalogue title carries 7C — that is the burst figure. Size your ESCs and current budget on 5C / 105 A continuous.
350 Wh/kg — The Reason This Pack Exists
Endurance on a UAV is bought with mass. At 350 Wh/kg this pack carries roughly 1.5× the energy of a conventional UAV LiPo of the same mass — Lithium Ion Solid State chemistry.
350 Wh/kg is the published rating. The pack figures divide out at 287 Wh/kg (310.8 Wh ÷ 1,084 g) — its 22.8 V sibling at 447 Wh/kg. Confirm which basis applies before you commit an airframe mass budget; the datasheet states it.
Same Pack, Other Voltage Class
Identical cell, chemistry, footprint and connector — the cell count changes. If your airframe runs a 22.8 V bus, switch here rather than going back to the catalogue.
Technical Specification · RKI-6640
Every published field for this SKU. Blank fields are omitted rather than estimated — request the datasheet for anything not listed.
What This SKU Actually Carries
Site-wide certification marks are not repeated on this page. Each line states the record held against RKI-6640.
5 SKUs · ₹15,001 To ₹5,74,615
Capacity sets the mission; cell count sets the bus.
| Pack | Capacity | C-Rate | Nominal | Price excl. GST | |
|---|---|---|---|---|---|
| RKI-6640 | 21 Ah | 7C | 14.8 V | ₹15,001 | Viewing |
| GenX Pro+ Solid State 22.8V 6S 18000mah 3C Premium Lithium Ion Solid State Rechargeable Battery 575wh/kg | 18 Ah | 2C | 22.8 V | ₹96,320 | View → |
| GenX Pro+ Solid State 53.2V 14S 18000mah 3C Premium Lithium Ion Solid State Rechargeable Battery 575wh/kg | 18 Ah | 2C | 53.2 V | ₹2,24,435 | View → |
| GenX Pro+ Solid State 45.6V 12S 29000mah 3C Premium Lithium Ion Solid State Rechargeable Battery 575wh/kg | 29 Ah | 2C | 45.6 V | ₹3,09,265 | View → |
| GenX Pro+ Solid State 45.6V 12S 54000mah 3C Premium Lithium Ion Solid State Rechargeable Battery 575wh/kg | 54 Ah | 2C | 45.6 V | ₹5,74,615 | View → |
Questions Buyers Ask On This SKU
01Is the discharge rating 5C or 7C?
5C continuous — 105 A. 7C — 147 A — is the burst figure and appears in the catalogue title. Size ESCs, fusing and harness on the continuous number.
02Why is rated cycle life 1000 cycles?
Because it is Lithium Ion Solid State at 350 — that energy density is bought with cycle count. Rated pack cycle life on this SKU is 1000 cycles. It is an endurance and mission pack, budgeted as a consumable. For high-turnaround flying, ask us to specify a higher-cycle line instead.
03What does ₹15,001 include, and how is GST billed?
₹15,001 is the unit price excluding GST. At 18% that is ₹2,700 tax, ₹17,701 delivered per unit on a GST invoice. Bulk rates apply from 25 units, and OEM pricing is quoted against volume — both come back on the RFQ, not from this page.
04What certification is on record for this pack?
Certification is confirmed per SKU on the quotation, never assumed from the catalogue. Manufacturing and R&D are in Gandhinagar, Gujarat, and the pack is made in India. If a tender names a certification you must hold, ask before raising the PO — we will state exactly what is on record for RKI-6640.
05What charger does 10.5A(0.5C), CCCV, 4.20V 600mA cut-off need?
Standard charge is 10.5A(0.5C), CCCV, 4.20V 600mA cut-off — 220.5 A on a 21 Ah pack, over 90 Mins, on a balance-capable charger sized for 4S1P reading the 2515 Connector harness. Rapid charge on this SKU is 21A(1C), CCCV, 4.20V 600mA cut-off. Charge only inside the stated temperature envelope — Ambient Charge : 0 to 60℃ Ambient Discharge: -40 to 60℃.
06What is the temperature limit before thermal runaway?
80 °C — do not exceed it. Cell temperature must stay below 80 °C in every condition, on this pack and on every GenX line: charge, discharge, storage and transport. Above 80 °C thermal runaway becomes possible on any lithium chemistry. The operating envelope is tighter than that ceiling — Ambient Charge : 0 to 60℃ Ambient Discharge: -40 to 60℃ — so treat 80 °C as an abort limit, not a target. Storage: Storage Temprature : Standard 23℃ (65% Humidity). If a cell approaches it, land, isolate the pack and report it to us.
07Can I get a different connector or harness length?
Yes. The pack ships with XT90S on the discharge side and a 2515 Connector balance lead. Alternate connectors, cable lengths and OEM harnesses are quoted as custom work — send the airframe interface with your RFQ.
08How fast can you dispatch, and is there a minimum order?
In stock, PAN India. No minimum order — one unit for evaluation is fine. Air freight needs the UN 38.3 test summary; request it with the order.
Send The Airframe, Get The Pack Specified
Quote RKI-6640as listed, or send AUW, payload, bus voltage and endurance target and we will confirm whether this is the right pack — including when it isn’t.