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D USB Rechargeable Smart Batteries - (2-pack)


Fast Charging Lithium Battery

1000+ Charge Cycles

Convenient Micro USB Charge Port
Just plug any micro USB cable or use the included cable to charge two batteries at once.

Built-In LED Charging Indicator
Pale Blue Batteries let you know when they are fully charged.

On-Board Smart Technology Provides Safe Charging
No more batteries ruining expensive electronic devices!

What's Included:
- 2 Pale Blue D Batteries
- 1 Charging Cable

Chemistry: Lithium Ion
Power [W-h]:  7.5 Watt hours
Voltage: 1.5V
Capacity: 5000 mAh
Charge Time: Under 5 hours (depending on charger specifications)
Cycle Rating:  1000+ Cycles
Charging Cable: 1 USB to 2 Micro USB
Charge State Indicator: Red Green LED
Protection Circuit: Integrated safety circuit protects battery and device
Overheat Protection: Operating at max output the battery will not overheat, this is part of the protection circuit.
Other Safety Protections: Protects against Overload, Leakage, Short Circuit, Over Voltage, & High Temperature
Certifications: IEC 62133, CE, FCC, PSE, UN38.3, RoHS, REACH
Operating Temperature Rage: -20c -> 60c, (-4F-> 140F)
Self-Discharge: The dormant / self discharge characteristics of Pale Blue batteries are very low. This is one of the advantages of a lithium ion battery with a control circuit, vs an alkaline or NiMh battery, where the cell discharges directly into the circuit (no control circuit). The battery life in dormant mode depends partly on the environment. High ambient temperatures, and higher humidity, increases the internal drain. But in normal circumstances a battery installed in a device, like a door lock, will last ~12 months.
Cells Per Battery: 3
Lithium Content: 0.54g
Individual Battery Weight: 74g

Free domestic shipping on orders $49 & Up

- 30 day return limit on all orders

- We are not currently shipping internationally. To get updates on when we will be shipping to your region sign up for our newsletter!

- One year warranty for defects in material or workmanship from the date of purchase. Please contact us at with any issues you may have or if you require a return authorization number. In order to process your return, we will need the defective product returned to us along with your return authorization number and your proof of purchase. Upon receiving defective products, Pale Blue will provide replacements or refunds at our discretion.

A different kind of rechargeable battery.

With our advanced lithium rechargeable technology, Pale Blue batteries charge 5x faster than conventional Ni-MH rechargeable batteries. Pale Blue batteries provide higher power and more consistent output through their use cycle.


Customer Reviews

Based on 8 reviews
Love these batteries!

The charge holds for a long time and they recharge much faster than I expected. I love that I'm not using disposables anymore!

so far so good !!!

so far so good.. only have had them for a month or so... 4 hours to charge they ran around 10 to 12 hours powering a air pump for minos in mino bucket for ice fishing !! like i said so far yes i like them very much
and yes i would recommend them to anyone who is sick of buying batteries..
every night when i come home from ice fishing i just plug them in to top off the power till the lghts go green

Looks good so far

Just received the batteries. 2nd order, I have two 9 volt, 4 AAA, 2 d-cell, along with 4 AA from a previous order.


I love them, and they work great.

Awesome batteries!

I have been using Pale Blue batteries for a while now and I absolutely LOVE them! Having a little boy with several battery operated toys, we have been going through an insane amount of single use batteries which I just feel terrible about. Now, that has been completely eliminated and every time I change to a set of freshly charged batteries, I feel good about not producing unnecessary toxic waste. Saving our Planet one battery at a time:)