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Build-a-Pen Batteries

Busy Beaver uses only EVOD style batteries which feature a durable flush mount push button as opposed the raised rubber button found on most cheap pens.  All batteries are tested prior to shipment and Busy Beaver will replace any defective battery shipped within 30 days. 

New!!  H10 Nested Cartridge Battery $15.00

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The H10 is a 650 mAh battery with a magentic oil cartridge nest.  The battery is slightly less than 2 1/2" tall and will accomodate most off the shelf oil catridges.  This super compact unit operates at 3.7V which is an optimal setting for thicker oils.  The H10 come equipped with a micro USB charging cord and is  available in Black, Silver, and Gold.  The H10 is also available in a complete kit which inclues an Oil Cartridge and retail packaging.  The H10 kit is $20.00

E-280 Touch Battery $4.50

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The E-280 is a 280 mAh touch battery designed for use with CBD Oil atomizers.  The battery features a slim design, and no button.  Simply begin to draw, and the rechargeable battery will turn on.

E-350 Slimline Battery  $6.00

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The E-350 is a slim line 350mAh Battery designed for use with CBD oil tanks.  The battery offer a slim profile and the familiar 5 click on 5 click off button.

NEW!!  E-400 Slimline Variable Voltage Battery $7.00

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The E-400 is a 400 mAh varilable voltage slim line battery.  The E-400 features 3 different voltages raging from 2.7 to 4.0 to optimize performance with your oils.  Three clicks change voltage and changing colored lights serve as indicators.  The slim design matches most oil cartridges on the market.  The E-400 is available in silver or black.

E-650 Battery $5.50

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The E-650 is a 650mAh pen battery with 5 click on/off flush mount button.  This rechargeable battery can be charged via USB connection and is rated for 300 charge/recharge cycles.  The E-650 is available in Black, Blue, Green, Pink, and Stainless.

E-900 Battery $6.00

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The E-900 is a 900mAh pen battery with 5 click on/off flush mount buttonbutton.  This rechargeable battery can be charged via USB connection and is rated for 300 charge/recharge cycles.  The E-900 is available in Black, Blue, Green, Pink and Stainless.

E-1100 Battery $6.50

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The E-1100  is a 1100mAh pen battery with 5 click on/off button.  This rechargeable battery can be charged via USB connection and is rated for 300 charge/recharge cycles.  The E-1100 is available in Black, Blue, Green, Pink, and Stainless. 

E-650-T Twist variable voltage Battery $10.99

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The E-650-T is a 650mAh twist pen battery is a variable voltage twist style with 5 click on/off flush mounted button.  A twist of the base provide a range of voltage from 3.2to 4.8V allowing users to control the temperature of their pens  This rechargeable battery can be charged via USB connection and is rated for 300 charge/recharge cycles.  The E-650-T are available in Black, Blue, Green, Pink, and Stainless.

E-900-T Twist variable voltage Battery $11.49

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The E-900-T is a 900 mAh twist pen battery is a variable voltage twist style with 5 click on/off flush mounted button.  A twist of the base provide a range of voltage from 3.2to 4.8V allowing users to control the temperature of their pens  This rechargeable battery can be charged via USB connection and is rated for 300 charge/recharge cycles.  The E-900-T are available in Black, Blue, Green, Pink, and Stainless.

E-1100-T Twist variable voltage Battery $11.99

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The E-11100-T is a 1100mAh twist pen battery is a variable voltage twist style with 5 click on/off flush mounted button.  A twist of the base provide a range of voltage from 3.2to 4.8V allowing users to control the temperature of their pens  This rechargeable battery can be charged via USB connection and is rated for 300 charge/recharge cycles.  The E-1100-T is available in Black, Blue, Green, Pink, and Stainless.

E-2200 Phatty Battery $12.99

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The E2200 is a 2200mAh battery packed in a short envelope.  About the length of a 650mAh battery (a little over 3" in height, this battery packs plenty of power to light up all of our dual coil attachments.  The E2200 also features a much longer time-out.  This means it will keep your coil lit almost twice as long as a standard battery.  The E2200 is available in Black, Blue, Green, and Silver.

E10W Variable Voltage/Wattage $19.99

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The E10W is a 1050 mAh, 10 watt mini stick is a small version of the larger 20W, 30W, and 50W stick box mods.  This compact unit is ideal for lower powered applications, such as e-juices and smaller concentrate attachments.  Voltage range is 3.3-5.0 with corresponding wattage outputs.

E20W Variable Voltage Battery $24.99
E30W Variable Voltage Battery $29.99

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The E20W and E30W are variable voltage variable wattage batteries.  The E20W is adjustable from 3-5.5 volts with wattage adjustments ranging from 2-20 Watts.  The 30W is a subohm battery with a voltage range of 2-8 Volts and a wattage range of 5-30 Watts.  Both batteries are available in Black, Silver, and Blue.

E50W Variable Voltage Battery $34.99

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The E50W is a 4400mAh variable voltage, variable wattage battery.  The E50W is adjustable from 3.3-10 Volts and 5-50 Watts.  The subohm 50W is powerful enough to light up the largest concentrate coil.  The E50w is available in Black and Silver.

​For more information, or to place an order, please call 602-791.1348 
​or email sales@ubuildapen.com.

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