This battery is going to be the future of vaping. A little harder to find due to the fact of it being a newer battery into the market. We knew that people were looking for this battery and so we acted.
- Brand: Sanyo
- Model: NCR20700B
- Size: 20700
- Chemistry: NCR
- Nominal Capacity: 4000mAh
- Nominal Voltage: 3.6V
- Discharge: 15A Max Continuous
- Positive: Flat
- Protected: NO, UNPROTECTED
- Rechargeable: Yes
- Dimensions: 20mm x 70mm
This battery has been tested by Mooch and here is his response
This Sanyo is one of the new generation of slightly larger cylindrical cells being brought to the market primarily for automotive use. It is 20mm in diameter and 70mm long, a 20700 battery. Other sizes and designations for similar cells from other manufacturers include 20650 and 21-70.
I am rating this cell at 16A 4000mAh. It runs a few degrees hotter than the HG2 (which is why the Sanyo has a lower rating) but at 10A and 20A continuous down to 3.2V the Sanyo lasts about 25% longer.
There is also a Sanyo 20700A cell which is rated at 3100mAh and about 30A. You'd have the capacity of a VTC6/30Q/HG2 plus a 30A rating for just a small increase in battery size.
Either of these Sanyo's could be a very good choice to 3D print a custom battery sled for. City of Cloud was kind enough to send me a couple of their samples of the 20700B for this testing but no 20700A's were available. I hope to get a couple of the 20700A's soon.
I don't know if any of these larger cells will eventually replace the 18650 but the Sanyo 20700B is hopefully just the first alternative cell that I'll be testing that offers a good current rating and extra capacity over our 18650's for just a small increase in size.