---
product_id: 1928919
title: "PowerTank 12 Telescope Battery – Rechargeable Portable 12V Power Supply for Computerized Telescopes – 84 Wh Power – Built–in 2 USB Ports, Cigarette Lighter Adapter, Built-in Flashlight"
brand: "celestron"
price: "¥36306"
currency: JPY
in_stock: true
reviews_count: 9
category: "Celestron"
url: https://www.desertcart.jp/products/1928919-powertank-12-telescope-battery-rechargeable-portable-12v-power-supply-computerized
store_origin: JP
region: Japan
---

# Built-in red & white LED flashlights for night vision & cleanup 84 Wh capacity for marathon sessions 2 USB + 2 cigarette lighter ports for versatile power PowerTank 12 Telescope Battery – Rechargeable Portable 12V Power Supply for Computerized Telescopes – 84 Wh Power – Built–in 2 USB Ports, Cigarette Lighter Adapter, Built-in Flashlight

**Brand:** celestron
**Price:** ¥36306
**Availability:** ✅ In Stock

## Summary

> 🌌 Power your cosmos—stay charged, stay curious!

## Quick Answers

- **What is this?** PowerTank 12 Telescope Battery – Rechargeable Portable 12V Power Supply for Computerized Telescopes – 84 Wh Power – Built–in 2 USB Ports, Cigarette Lighter Adapter, Built-in Flashlight by celestron
- **How much does it cost?** ¥36306 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/1928919-powertank-12-telescope-battery-rechargeable-portable-12v-power-supply-computerized)

## Best For

- celestron enthusiasts

## Why This Product

- Trusted celestron brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Emergency Ready:** More than a telescope battery—your go-to power source for unexpected outages and outdoor adventures.
- • **User-Centric Design:** Intuitive on/off/charge switch and included cables make setup and storage effortless, so you’re always ready to explore.
- • **Night Vision Friendly:** Integrated red LED flashlight preserves your dark adaptation while the bright white LED ensures no gear is left behind.
- • **Power Through the Night:** 84 Wh sealed lead acid battery fuels your telescope and devices for hours of uninterrupted stargazing.
- • **Universal Compatibility:** Dual 12V cigarette lighter ports and USB outputs keep all your astronomy gear and gadgets fully charged.

## Overview

The Celestron PowerTank 12 is a portable, rechargeable 12V power supply with an 84 Wh sealed lead acid battery designed for computerized telescopes and outdoor use. Featuring two 12V cigarette lighter ports, two USB charging ports, and built-in red and white LED flashlights, it supports extended astronomy sessions while preserving night vision. Its rugged design, emergency utility, and user-friendly controls make it an essential companion for amateur astronomers and outdoor enthusiasts alike.

## Description

Take your telescope anywhere with this portable, rechargeable power supply. Whether you have a computerized telescope or operate your telescope using motors, Celestron specially designed this product with the amateur astronomer in mind; it’s packed with useful features. First, you’ll find two 12V cigarette lighter ports for your astronomy gear. This battery is compatible with all Celestron computerized telescopes for maximum versatility. You’ll also find two USB ports on board so you can keep your smartphone, tablet, GPS, or speaker charged and ready all night long. When your eyes are dark adapted, turn on the integrated red LED flashlight to stay organized without sacrificing your night vision. When the observing or astroimaging session is over, turn on the bright white LED flashlight to illuminate your site and ensure no lens caps or eyepieces are left behind in the dark. When you’re not observing, keep this battery charged and at the ready for unexpected emergencies. You can use the flashlight and USB ports to stay illuminated and connected during a power failure. PowerTank can even help you top off a weak car battery with the included positive and negative terminals. This sealed lead acid battery offers safer and more stable chemistry compared to low-quality lithium ion batteries, and features a built-in circuit breaker for even more safety.

Review: A good and versatile product. - Well, it looks like a tank anyway. I camp out a lot. As such I've grown to appreciate having a power box available for the times I'm plop-camping (or "glamping"). I used to take a jump box with me, but I always felt a little funny (and inefficient) about something with attached jumper cables. Enter the Celestron Power Tank. Yes, it's intended to support the use of a telescope. But it can do oh so much more. For instance, there are two cigarette lighter plugs (I'm old enough where I can call them that). Plug in a suitable power inverter and you have a power outlet you can use to, say, inflate an air mattress. Two USB ports lets you charge your stuff. And there is a mack daddy spotlight on it. So it works. And as there are a two terminals on the back, with jumper cables I could theoretically use jumper cables with this. I also appreciate the off/on/charge switch...it makes it very clear what I'm doing, and it enables me to keep the unit plugged in without charging it. This is important as the instructions tell you to charge it regularly when in storage. Much easier to flip a switch while it's already plugged in, instead of unraveling a charging cable (after you spend twenty minutes looking for it) and plugging it in. The light is quite bright and can angle down. I really kind of wish it angled in all directions though, as I was using this as a tent light (and thus pointed straight up) but it kept tipping. Charging this at first use is unclear - on one hand (the printed directions) you're told to charge it for 14-16 hours out of the box, but on the unit itself you're told to charge it for 24 hours. You are then cautioned against overcharging it lest explosive gasses are generated and it explodes or something. Your takeaway - this is a easy to use and solid performer for times when you need a versatile power box. It's not overly heavy as jump boxes tend to be, it has a clever on/off/charge switch, and the light is plenty powerful for normal use. This is a winner.
Review: Great Power Tank. - Reliable. Has lasted 10 years so far. Works great out in the field.

## Features

- THE ORIGINAL TELESCOPE POWER SUPPLY: Enjoy extended astronomy sessions anywhere with this portable 7-amp hour sealed lead acid power supply with 84 Wh capacity.
- WORKS WITH A VARIETY OF DEVICES: Includes two 12V output cigarette lighter ports that are compatible with all Celestron computerized telescopes and other popular astronomy gear. Also features 2 USB ports for charging phones & other USB-powered devices.
- ONBOARD RED AND WHITE LED FLASHLIGHTS: Includes a built-in red LED flashlight to preserve your night vision while observing and a bright white LED to illuminate your site at the end of the night for easy cleanup.
- AN EMERGENCY KIT ESSENTIAL: Keep PowerTank charged and ready for unexpected power outages.
- CABLES INCLUDED: Cigarette lighter and 110 V/220 V switchable universal AC adapter included.
- UNBEATABLE WARRANTY & SUPPORT: Buy with confidence from Celestron, a leading telescope brand in California since 1960. Your purchase includes a 2-Year US Warranty and unlimited support from our team of US-based experts.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00008Y0U5 |
| Batteries | 6 12V batteries required. |
| Best Sellers Rank | #44,296 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #191 in Outdoor Generators |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,455) |
| Date First Available | November 15, 2005 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 8.5 pounds |
| Item model number | 18774-CGL |
| Manufacturer | Celestron |
| Product Dimensions | 12 x 10 x 6 inches |

## Product Details

- **Battery Cell Composition:** Lead Acid
- **Brand:** Celestron
- **Number of Batteries:** 6 12V batteries required.
- **Recommended Uses For Product:** Telescope, electronic devices
- **Unit Count:** 1.0 Count

## Images

![PowerTank 12 Telescope Battery – Rechargeable Portable 12V Power Supply for Computerized Telescopes – 84 Wh Power – Built–in 2 USB Ports, Cigarette Lighter Adapter, Built-in Flashlight - Image 1](https://m.media-amazon.com/images/I/61z5ak3t2VL.jpg)

## Questions & Answers

**Q: How good is the smaller light as a spotlight - how far does it project?  How good is the LED as a spotlight (how far does it project)?**
A: The smaller light is sufficient to see within 30 feet but is not overly bright. The LED is much brighter and useful as a spot and will project well up to about 100 feet.

**Q: Is the battery of the PowerTank safe for airplane checked baggage?**
A: I see no serious complications. I have never checked a psu in my baggage, but I have checked computer components along with other dry cell batteries.

**Q: Can the pack be charged in Europe (220 V)?**
A: Hi! I live in Chile, and we use 220 ​​volts. And I have a PowerTank, and i don't have problem with the charge. I hope my comments will serve as a reference. Best regards.

**Q: Is there an alternative we can buy since these don't seem to hold up?**
A: Not sure what you man by "these don't hold up" because they last years if you take care of them and charge them up once in awhile while not in use.  Look for the Power Tank Lithium as an option.

## Customer Reviews

### ⭐⭐⭐⭐⭐ A good and versatile product.
*by J***T on May 19, 2015*

Well, it looks like a tank anyway. I camp out a lot. As such I've grown to appreciate having a power box available for the times I'm plop-camping (or "glamping"). I used to take a jump box with me, but I always felt a little funny (and inefficient) about something with attached jumper cables. Enter the Celestron Power Tank. Yes, it's intended to support the use of a telescope. But it can do oh so much more. For instance, there are two cigarette lighter plugs (I'm old enough where I can call them that). Plug in a suitable power inverter and you have a power outlet you can use to, say, inflate an air mattress. Two USB ports lets you charge your stuff. And there is a mack daddy spotlight on it. So it works. And as there are a two terminals on the back, with jumper cables I could theoretically use jumper cables with this. I also appreciate the off/on/charge switch...it makes it very clear what I'm doing, and it enables me to keep the unit plugged in without charging it. This is important as the instructions tell you to charge it regularly when in storage. Much easier to flip a switch while it's already plugged in, instead of unraveling a charging cable (after you spend twenty minutes looking for it) and plugging it in. The light is quite bright and can angle down. I really kind of wish it angled in all directions though, as I was using this as a tent light (and thus pointed straight up) but it kept tipping. Charging this at first use is unclear - on one hand (the printed directions) you're told to charge it for 14-16 hours out of the box, but on the unit itself you're told to charge it for 24 hours. You are then cautioned against overcharging it lest explosive gasses are generated and it explodes or something. Your takeaway - this is a easy to use and solid performer for times when you need a versatile power box. It's not overly heavy as jump boxes tend to be, it has a clever on/off/charge switch, and the light is plenty powerful for normal use. This is a winner.

### ⭐⭐⭐⭐⭐ Great Power Tank.
*by A***R on November 18, 2025*

Reliable. Has lasted 10 years so far. Works great out in the field.

### ⭐⭐⭐⭐⭐ Excellent Remote Power For Telescopes
*by B***F on November 10, 2019*

This is my second Celestron Power Tank. I had my original for about 15 years until recently it fell off a high shelf in the garage and, well, stopped working. Purchased this new one like my original and it appears to be like the original. A suggestion to extend longevity with this is to use a good charger instead of the power supply and internal charger that comes with it - it can easily over-charge the battery and render the Power Tank dead, and you'd have to replace the big battery. I highly recommend the "Battery Tender 12 Volt Junior Automatic Battery Charger" for this. It will keep the battery properly charged and never over-charge it. I think the reason most people may have issues with this tank is over-charging, or letting the battery go dead, which then ruins the battery also. I learned about the Battery Tender 12 Volt Junior Automatic Battery Charger long ago with my original and it lasted a very long time with zero issues. If you do use a Tender Junior charger be sure to leave the tank power switch in the off position (not chg and connect to the rear red and black battery terminals only. The Power Tank itself is well built and I use it to run a Celestron 8se, and a small 12V fan to reduce possible condensation that I point at a camera and lens on a SkyTracker mount I usually setup near my telescope. I use a dew shield for the telescope and 12V fan for the SkyTracker camera. I usually can get two full nights running both with the tank. And using the Tender Junior charger, the tank charges in much less time. I covered the main spotlight on the tank with tail-light red tape so it only shines red light. Works great.I highly recommend this product.

## Frequently Bought Together

- Celestron – PowerTank 12 Telescope Battery – Rechargeable Portable 12V Power Supply for Computerized Telescopes – 84 Wh Power – Built–in 2 USB Ports, Cigarette Lighter Adapter, Built-in Flashlight
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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-11*