THE HEAT AND VIPER HOUSES

1x 18650 BATTERY

⚠ WARNING

Do not charge with the 18650 battery inside the unit while connected to USB C. Remove the 18650 before charging or using the unit on USB C.

HEAT & VIPER 4.0 Extra Battery Kit [2000 MAH]

HEAT & VIPER 4.0 Extra Battery Kit [2000 MAH]

$22.00
$22.00 $43.00
SAVE $21 Sold out
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EXTRA BATTERIES

Both HEAT & VIPER operate on an internal battery but also have an internal spare power supply battery compartment which the device is able to recharge from.

⚠ WARNING

Do not charge with the 18650 battery inside the unit while connected to USB C. Remove the 18650 before charging or using the unit on USB C.

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Customer Reviews

Overall rating: 4.6 / 5 from 47 reviews.

I have only charged them at this point. The built in battery of the Vipers have sufficed to this point. They charged with no issues. I do like that the batteries charge the internal Viper batteries for very extended run time without having to swap batteries out.

Craig M. 4/5 Verified

HEAT & VIPER 4.0 Extra Battery Kit [2000 MAH]

this is a nice product to use at night. it would be better if I could have both units focus together. i recieved the hardware for a head mount, but it was missing the duck tail reciever for the head mount. the only way to use it is if you hold it with ur hands. very disapointed.

Apolinar N. 2/5 Verified

HEAT & VIPER 4.0 Extra Battery Kit [2000 MAH]

Love the battery’s the only thing I don’t like was the charger but for the price it’s not bad just took forever to charge

Westley M. 4/5 Verified

HEAT & VIPER 4.0 Extra Battery Kit

After purchasing one of the viper units with the helmet mount setups and spare batteries with the charger, I was so impressed with the improvements over the mark one unit I bought years ago, I bought a second one to have a duel tube setup to maximise my capabilities for milsim night ops

Steven F. 5/5 Verified

HEAT & VIPER 4.0 Extra Battery Kit

I find the extra battery kit very useful because I purchased the Heat & Viper 4.0 units both & Received ZERO battery to operate either unit So had I not purchased the Extra Battery kit I would have not been able to even utilize the $1200 equipment (possible i miss read the small print somehow) also found it odd I never got the opportunity to send any feedback on the purchase of the units themselves So unfortunately I am giving feedback here but Again this item is top notch worked Great... thx for your time

Gregory G. 5/5 Verified

HEAT & VIPER 4.0 Extra Battery Kit

Everything went well with my order but I never received the free mount for the helmet to night gear. I filled out all the info and sent with my order I thought. But I was supposed to get it free with everything I purchased. Everything else is fantastic for the price.

Ronald C. 5/5 Verified

HEAT & VIPER 4.0 Extra Battery Kit

The product is fine, it just took a very long time to get here. I will say that whenever I reached out to customer service, I always received a quick response which was a plus and quite honestly the only reason I didn't end up canceling my order!

Lori J. 5/5 Verified

HEAT & VIPER 4.0 Extra Battery Kit