Molicel P45B 4S Li-Ion Battery Pack (4500/9000/13500/18000mAh)

A 4S lithium-ion pack assembled to order from genuine Molicel INR-21700-P45B cells, in your choice of 1P to 4P: 4 cell groups in series at 14.4V nominal, with 1 to 4 cells in parallel per group for 4500–18000mAh and 45–180A of continuous discharge. It suits 3" to 5" long-range FPV builds, small fixed-wing aircraft and portable electronics.

Pick your pack

• 4S1P: 4 cells · 4500mAh · 64.8Wh · 45A continuous · approx. 322 g
• 4S2P: 8 cells · 9000mAh · 129.6Wh · 90A continuous · approx. 625 g
• 4S3P: 12 cells · 13500mAh · 194.4Wh · 135A continuous · approx. 927 g
• 4S4P: 16 cells · 18000mAh · 259.2Wh · 180A continuous · approx. 1230 g

Specifications

• Cells: Molicel P45B 21700, 4500mAh and 45A continuous each
• Voltage: 14.4V nominal · 16.8V fully charged · 10V cutoff
• Main connector: your choice of XT-60 / XT90-AS (XT-30 also on the 1P pack) — pick it above
• Balance lead fitted for standard balance chargers

Build

Every pack is built in Gurugram from matched, capacity-tested cells with spot-welded nickel busbars, silicone main leads and a heat-shrink wrap, then load-tested before dispatch. Packs are assembled after payment and dispatch within 3–4 business days. Need a different connector, wire length or layout? Ask us on WhatsApp before ordering.

Charging and care

Charge in Li-Ion mode at 4.20V per cell (never LiHV) at up to 1C — 4.5A for 1P, 9A for 2P, 13.5A for 3P, 18A for 4P. Do not discharge below 2.5V per cell; land at around 3.3V per cell for the longest cycle life. Store at 3.6–3.7V per cell.