Currency
Log In OrdersHelp
0 $0.00
Cart.
0
items

Add $99.00 more to get free shipping

3 blades unlock a free holder or blade

Add any 3 blades. Your holder is free if it's in your cart, otherwise your cheapest blade is.
Subtotal(
0
items):
$0.00
LIFETIME WARRANTY

Upgrade to lifetime warranty

Lifetime warranty added

Every item in your order, up from 2 years.

Every item in this order is covered for life.

Shipping:

$11.25Calculated at next step
Total
$0.00
30-day returns 4.7 · 900+ reviews Designed in Oregon

Add to your order

BitWhip Travel Case
$29.95
RGB Critter Travel Case
$19.95
2500mAh 18650 Battery
$9.95
BitWhip Accessory
From $29.95
Fiber Optic Duster -⁠ Black
$19.95
Critter To LPB Adapter
$19.95
DIY Connector
$14.95
Critter Connector
$24.95
AOAM Pull-String Bag
$12.95

Cart

Your cart is currently empty.
Build Your Kit Let’s shop
Official 18650 replacement battery for the RGB Critter Light Engine

2500mAh 18650 Battery

The official spare battery for the RGB Critter.

RGB Critter BT Accessory

The official spare battery for the RGB Critter.

WRITE REVIEW

Sale
You save $2
/

This high-quality 18650 battery is the official replacement for the RGB Critter Light Engine. Designed to fit perfectly within the Critter's compact body, we recommend using only this battery for proper performance and safety.

Recharge the RGB Critter with the included USB-C cable, or swap the battery when needed. For a quick guide, see the RGB Critter BT charging instructions video, and review our battery handling tips for the best life and performance.

Full details and specs Show less

Please note

  • Due to shipping regulations, we cannot ship standalone batteries to international addresses or via overnight methods.
  • Battery appearance may vary from the photo. We no longer use the custom AOAM wrap, but this is the same approved 18650 replacement battery for the RGB Critter Light Engine.
Price$9.95
Regular price$11.95
You save$2.00
Free 30-day US returns
Free US shipping over $99 Free US shipping included
4.7 · 900+
reviews
Free 30-day
US returns
Designed
in Oregon
Goes great with itAdds with Add to Cart
BitWhip Travel Case BitWhip Travel Case
$29.95
BitWhip whip head BitWhip whip head14 types
from$29.95
RGB Critter Travel Case RGB Critter Travel Case
$19.95
Item $9.95 $9.95

2-year warrantyDefects in materials or workmanship are covered for 2 years from the date of purchase.

Lifetime upgrade in the cartAdd it and every item in the order is covered for as long as you own it. Batteries are covered for 60 days.

Free 30-day US returnsUnused and in the original packaging, and we email you a prepaid label. International returns are accepted within 30 days, return postage is yours.

Broke in use?That is a warranty claim, with no 30-day limit. Email support@antsonamelon.com and we repair or replace it.

Full warranty policy  ·  Full return policy

TOP REVIEWS

3.9 out of 5 · 15 reviews

Daniel B.

Verified buyer Jun 2026

I needed a replacement battery for my RGB Critter light. The original lasted almost 6 years. This company is great and their products are just as awesome as they are.

Meghan R.

Verified buyer Nov 2023

Absolutely great to have on backup

I made a costume using the fyber kit and is listed on fade mode for about 5 hours straight at a party. Having the battery ready made it much easier to keep the lights and party going!!

Tina K.

Verified buyer Jul 2023

Amazing Product Design

Such great communication, quality products, beautiful packaging and amazing support! Love the design so that I can use the light with a variety of items. Great battery life as well.

Read all 15 reviews

More to explore:

RGB Critter battery guideAugust 10, 20267 min read Flying with LED propsAugust 10, 20268 min read All twist-on accessoriesShop the collection
See all
2500mAh 18650 Battery
2500mAh 18650 Battery
Sale
You save $2
/
  • 5 stars: 8 (53%)
  • 4 stars: 2 (13%)
  • 3 stars: 2 (13%)
  • 2 stars: 2 (13%)
  • 1 star: 1 (7%)
Some of the reviews shown are from related products the merchant grouped with this one.
C
Craig

Good quality

D
Daniel

I needed a replacement battery for my RGB Critter light. The original lasted almost 6 years. This company is great and their products are just as awesome as they are.

K
Kristina B

The only thing that would make these better is if the batteries could be charged without the critter!

K
Kristina B

The only thing that would make these better is if the batteries could be charged without the critter!

G
Gray Pa (Chicago, US)
There geret

There great but I wish that they sold a charger as well

G
Geut Hazan (Tel Aviv, IL)
unreliable shipping and service

You lied on the delivery data so I couldn't get the package, also dont have a way to return it cause I'm not in the country anymore. Good jib

C
Chris Hodgson (Huddersfield, GB)
Lumi Saber

Love them so versatile you add add blades to both the 8 and 12 inches ones and you can stack them together

M
Meghan Reeves (New Milford, US)
Absolutely great to have on backup

I made a costume using the fyber kit and is listed on fade mode for about 5 hours straight at a party. Having the battery ready made it much easier to keep the lights and party going!!

J
Jazmin Torres (Los Angeles, US)
Idk how to work it

It’s difficult to change

Hi Jazmin, thank you for your review. If the battery feels difficult to change, this video should help. It shows exactly how to charge, remove, and reinstall the battery in the RGB Critter BT flashlight:

https://www.youtube.com/watch?v=qJ_Dd5xFxuE

If you have any trouble after watching it, feel free to reach out to us at support@antsonamelon.com and we’ll be happy to help.

R
Rebeca Kraat (Miami, US)
I love it !!

I’m getting a second bit whip I love it so much !

T
Tina Kapp (Johannesburg, ZA)
Amazing Product Design

Such great communication, quality products, beautiful packaging and amazing support! Love the design so that I can use the light with a variety of items. Great battery life as well.

a
ashleigh Kearsley
Batteries are not happy campers!

Unfortunately, if you are planning to wear your whip as a costume or use it at a festival in the summer, the batteries do not last if you are camping, they are designed to be stored at between 20 -25 degrees temperature, and it ruins your costume when they continually go out after about 15 to 20 mins use.

L
Luvrnetic
Power and recharge time.

The amount of light that comes out of these is fantastic. I've had multiple batteries for years with no issue.
I do wish there was some way I could recharge these from a USB though so I could do mobile recharges if needed.

S
Sarah
Wish these were standard AAAs.

I've had my BitWhip for several years now and the batteries just stop charging after a certain point. I've bought replacement batteries in the past and now I have to buy more, which sucks because they are expensive and you dont get a lot of use out of them.. therefore requiring at least one more backup battery. It would be soooo much more convenient to use rechargeable AAAs instead of expecting people to pay extra for a 'special' battery that hardly functions. I love the BitWhip, but I cant say the same for the charging method.

N
Nicole Gillis
Inconsistent

I've had my whips for about 3 years now and I've purchased batteries twice, and some of the batteries are inconsistent and don't charge. Frustrating because they're literally $5 a piece

F
Festie'

I have a original copper bodied whip/staff with the single button. Old school many years ago got from you. what kind of battery does it take I lost the batteries I had?

Ants on a Melon, Inc.

Thanks so much for your long-time support!

Our first-generation flashlight model you mentioned is not compatible with the battery we currently offer on our website. The newer RGB Critter BT uses a different battery type and charging system.

The batteries used in our first-generation flashlights are 10440 lithium-ion batteries. You can find a compatible option below using the Amazon link below:

Battery:
🔋 10440 Battery – Amazon: https://www.amazon.com/Button-Demonfire-Protected-Rechargeable-Battery/dp/B072JT3K3H

RGB CRITTER FLOW KITS. BUILT for performance.

Shop all

Explore light toys powered by the versatile RGB Critter BT color-changing flashlight. These twist-on accessories, including fiber optic whips, light sabers, and more, easily attach for next-level flow.

BitWhip Fiber Optic Whip Kit

4.7172 reviews, rated 4.7 out of 5

Light + twist-on fiber whip, 140 to 300 fibers

From$159.95Regular price $179.90
Kit saves $19.95
VIEW THIS KIT

Light Painting Photography Kit for Beginners

4.824 reviews, rated 4.8 out of 5

10 tools in the box, light included

$199.95Regular price $319.60
Kit saves $119.65
VIEW THIS KIT

Fiber Optic Costume Kit

4.828 reviews, rated 4.8 out of 5

Light + wearable fibers, 6 to 12 ft

From$189.95Regular price $209.90
Kit saves $19.95
VIEW THIS KIT

Double BitWhip Fiber Optic Whip Kit

4.916 reviews, rated 4.9 out of 5

Two lights, two whips, one Connector

From$309.95Regular price $384.75
Kit saves $74.80
VIEW THIS KIT

LED Staff Kit

4.810 reviews, rated 4.8 out of 5

Two lights + tubes, 23 to 83 in staff

From$304.95Regular price $464.65
Kit saves $159.70
VIEW THIS KIT

Light Painting Pro Kit

4.910 reviews, rated 4.9 out of 5

Two lights and nearly every tool we make

$971.95Regular price $1,280.75
Kit saves $308.80
VIEW THIS KIT

Light Painting Starter Kit

5.03 reviews, rated 5.0 out of 5

One light plus a deeper light painting toolset

$421.95Regular price $582.00
Kit saves $160.05
VIEW THIS KIT

Jupiter Rope Kit

4.812 reviews, rated 4.8 out of 5

Six feet of color-changing rope, light included

$169.95Regular price $189.90
Kit saves $19.95
VIEW THIS KIT

Saber Kit

4.847 reviews, rated 4.8 out of 5

Light + saber tube, 4 patterns, 6 lengths

From$179.95Regular price $259.80
Kit saves $44.85
VIEW THIS KIT
Shop all Kits

Added To Cart

Complete your setup:

International Shipping Restriction

This lithium-ion battery cannot be shipped internationally and cannot be added to your cart.

You can purchase the required battery locally with these specifications:

  • 18650
  • Lithium-ion
  • 3.6V nominal
  • Unprotected
  • Flat top
  • 18.3mm diameter × 65.0mm length

Do not purchase protected, button top, 3.2V, or 1.5V cells.

Ants on a Melon is not responsible for batteries purchased from third-party sellers. Please verify specifications and use only high-quality lithium-ion cells from reputable brands.

LIFETIME WARRANTY
Every item in your order, for life.
Our gear comes with a 2-year warranty. This upgrade extends every item in your order to lifetime.
WHAT YOU ALREADY GET
2 years on everything in your order, free. Batteries have their own 60-day warranty.
WHAT THIS ADDS
If anything in this order fails from a defect, we repair or replace it for as long as you own it.
NO HASSLE CLAIMS
Email us photos or a short video. Most repairs are back out in 2 to 3 working days.
NOT COVERED
Drops, a cracked housing, loss, theft, broken fiber strands and normal battery wear.
International duties & VAT
A quick heads-up for orders shipping outside the US.
Set by your destination
Import duties and VAT are charged by your country's customs, not by Ants on a Melon.
Paid on delivery
Your carrier collects any charges when they deliver. Amounts vary by country.
Still fully guaranteed
Every international order is guaranteed to arrive. Need help? Email support@antsonamelon.com