BergHeat 20,000 mAh power bank in black with carbon texture

Our heated vest, USB heated gloves, hoodie, jacket, belly wrap and heated tops all run on this power bank. With 20,000 mAh it lasts about four times as long as the 5,000 by our numbers: around 20 to 24 hours on the heated gloves and around 32 on the heated vest on level one – spread over several days.

  • Multi-day trips with no outlet
  • Long hours in a hunting stand or on shift outside
  • A backup in the car or pack – charges your phone too

Run times are calculated estimates. They depend on the garment, heat setting and outside temperature.

Power

  • Capacity: 20,000 mAh (74 Wh at 3.7V)
  • USB-A output: 5V / 2A
  • Input: 5V / 2.1A via USB-C or Micro-USB

Ports and use

  • 2 × USB-A output, USB-C and Micro-USB for charging
  • The two outputs share the power – for full heat, one heated item per power bank
  • CE compliant to EN IEC 62368-1

Size and weight

  • About 5.4 × 2.7 × 1.1 in (138 × 68 × 28 mm), around 14 oz (400 g)

Charge it fully before the trip, put it in your pack or jacket pocket and plug the heated item into a USB-A port. It only goes back on the charger when you’re home.

  • Only use with heated apparel rated 5V and 2A.
  • Not for heated socks or knee socks – they run at 3.7V and have their own power bank pair.
  • Keep it dry – ideally in an inside compartment of your pack.

It charges over USB-C or Micro-USB from a regular wall adapter. At 20,000 mAh that takes a while – overnight is best.

  • 20,000 mAh power bank
  • USB-C charging cable
  • Quick guide
4.9 Read 108 reviews

20,000 mAh Power Bank for Heated Clothing

For several days without an outlet – four times the capacity of the 5,000.

  • By our numbers, it lasts about four times as long as the 5,000
  • Delivers 5V / 2A on USB-A, made for our heated vest and gloves
  • You can charge it via USB-C or Micro-USB
  • At 5.4 × 2.7 × 1.1 in, it fits your pack or jacket pocket
$94.90$124.90You save $30.00 (24%)
Capacity20,000 mAh
5,000 mAhto swap$49.90 10,000 mAhlong day$74.90 20,000 mAhmulti-day$94.90

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At a glance

Enough power for several days

  • 20,000mAh

    Capacity

    74 Wh

  • 2A

    on USB-A

    at 5V – for heated apparel

  • 4×

    Run time

    calculated, vs. the 5,000

  • 14oz

    Weight

    400 g · 5.4 × 2.7 × 1.1 in

The three BergHeat power banks side by side: 5,000, 10,000 and 20,000 mAh

Three sizes

Which power bank fits your day?

All three deliver the 5V your vest, gloves and jacket are built for. The difference is how long they last – and how much you carry.

  • 5,000 mAhSmall and light, to swap in your inside pocket.
  • 10,000 mAhA long day without swapping.
  • 20,000 mAhFor your pack and multi-day trips – this one.

Run time

About four times as long, by our numbers

Calculated from the run times with the 5,000 – spread over several days.

  1. Heated gloves with the 5,000one charge
    5–6h
  2. Heated gloves with the 20,000one charge
    20–24h
  3. Heated vest with the 5,000level one
    8h
  4. Heated vest with the 20,000level one
    around 32h

Calculated estimates. Heated vest on level one at 23 °F (−5 °C). Cold, heat setting and battery age shorten the time.

20,000 mAh power bank in a backpack at a hunting stand, cable running to a heated vest

Details

What it can do

Ports of the 20,000 mAh power bank: two USB-A, Micro-USB and USB-C

Four ports

Heated apparel goes into USB-A, charging is via USB-C or Micro-USB.

Charges your phone too

Via USB-A at 5V.

One heated item per bank

The outputs share the power. For full heat, one at a time.

Under 100 Wh

At 74 Wh it’s usually allowed in carry-on luggage.

Keep it close in the cold

Cold drains batteries faster. Pack it inside your bag, close to your back.

Made for

Built for the heated vest and gloves

Both run on USB at 5V and 2A – exactly what this power bank delivers. With 20,000 mAh, one charge lasts about four times as long as the 5,000 by our numbers.

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Frequently asked questions

  • Our heated vest, USB heated gloves, hoodie, jacket, belly wrap and heated tops – they all heat over USB at 5V and 2A. Not the heated socks: they run at 3.7V.

  • By our numbers, around 20 to 24 hours on the heated gloves and around 32 on the heated vest on level one – about four times as long as with the 5,000. Cold, heat setting and battery age shorten the time.

  • For a day in your jacket pocket, 5,000 or 10,000 mAh is enough. The 20,000 is for multi-day trips, long hours in the stand and as a backup in the car – at around 14 oz, it’s better off in your pack.

  • You can – there are two USB-A outputs. They share the power, though. For full heat, one heated item per power bank is better.

  • Usually, yes. At 74 Wh it’s under the 100 Wh limit above which airlines require approval. Power banks go in your carry-on, never in checked luggage. Your airline’s rules come first.

  • Yes, but every battery loses capacity in the cold. Keep it close to your body – in an inside pocket or inside your pack. Charge it indoors at room temperature.

BergHeat 20,000 mAh power bank in black with carbon texture

For several days

Power for the whole trip

  • 20,000 mAh, 5V / 2A on USB-A
  • Ships within 24 h on business days
  • Charges via USB-C or Micro-USB

$94.90

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Customer Reviews

Overall rating: 4.9 / 5 from 108 reviews.