I_break_zagi's
Aug 11, 2005, 05:00 AM
I will have an update for you next week, stock is coming next week for the new phosphate 18650 power cells and I will be able to supply you direct, I hope to have the online shop up and running in 2 weeks which will allow you to buy online, or telephone orders can be made with credit cards.
If anyone wants an initial pack please send me an e-mail on:
simon@amberjac-projects.co.uk
or
call me on 011 44 77805 96186
or
Skype me my username is: simonsheldon (Skype is free if both users have it set up www.skype.com)
I will quote you price and availability in advance of the website coming online.
www.overlander.co.uk will serve the UK market, Amberjac Projects Ltd will serve the US market directly.
Initially available are:
3s1p (9.6volts 1200mAh 18amp cont/28amp peak) 120gms
3s2p (9.6volts 2400mAh 36amp cont/56amps peak) 240 gms
3s3p (9.6volts 3600mAh 54amp cont/84 amps peak) 360 gms
4s1p (12.8 volts 1200mAh 18amp cont/28amp peak) 160gms
4s2p (12.8 volts 2400mAh 36amp cont/56amps peak) 320 gms
4s3p (12.8 volts 3600 mAh 54amp cont/84 amps peak) 480 gms
Bespkoke packs to your request if you have larger models.
or
single cells for you to make up your own packs.
Charging, use Li-Ion/Li-Poly setting on your charge, set cell count to number of cells in series, manually settable chargers work the best as the slightly lower voltage can confuse automatic chargers. I used a Schulze isl 330d and it works fine.
Charge rates 1C to 2C, 2C fast charge will charge the pack in around 35 to 40 minutes, faster charge rates are being looked at, I have done 4C but cell life will go down quite a bit in the longer term.
As ususal the same phosphate safe benefits of no thermal runaway are demonstrated, long life (better cycle life than polymer at high rate) flexible charging without the issues.
Amberjac Projects are not targeting the traditional Lithium-Polymer market (light flyers, park flyers or indoor) but we are aiming at the high power sports market where larger models are being powered by electric and need the best power/weight ratio rather than capacity/weight ratio.
We are modellers ourselves, so you can be confident of advice and support.
Follows is a discharge plot using 4s2p and a kontronik motor set up, notice than the voltage is increadibly stable and that both current and power increase halfway through the discharge.
Simon.
If anyone wants an initial pack please send me an e-mail on:
simon@amberjac-projects.co.uk
or
call me on 011 44 77805 96186
or
Skype me my username is: simonsheldon (Skype is free if both users have it set up www.skype.com)
I will quote you price and availability in advance of the website coming online.
www.overlander.co.uk will serve the UK market, Amberjac Projects Ltd will serve the US market directly.
Initially available are:
3s1p (9.6volts 1200mAh 18amp cont/28amp peak) 120gms
3s2p (9.6volts 2400mAh 36amp cont/56amps peak) 240 gms
3s3p (9.6volts 3600mAh 54amp cont/84 amps peak) 360 gms
4s1p (12.8 volts 1200mAh 18amp cont/28amp peak) 160gms
4s2p (12.8 volts 2400mAh 36amp cont/56amps peak) 320 gms
4s3p (12.8 volts 3600 mAh 54amp cont/84 amps peak) 480 gms
Bespkoke packs to your request if you have larger models.
or
single cells for you to make up your own packs.
Charging, use Li-Ion/Li-Poly setting on your charge, set cell count to number of cells in series, manually settable chargers work the best as the slightly lower voltage can confuse automatic chargers. I used a Schulze isl 330d and it works fine.
Charge rates 1C to 2C, 2C fast charge will charge the pack in around 35 to 40 minutes, faster charge rates are being looked at, I have done 4C but cell life will go down quite a bit in the longer term.
As ususal the same phosphate safe benefits of no thermal runaway are demonstrated, long life (better cycle life than polymer at high rate) flexible charging without the issues.
Amberjac Projects are not targeting the traditional Lithium-Polymer market (light flyers, park flyers or indoor) but we are aiming at the high power sports market where larger models are being powered by electric and need the best power/weight ratio rather than capacity/weight ratio.
We are modellers ourselves, so you can be confident of advice and support.
Follows is a discharge plot using 4s2p and a kontronik motor set up, notice than the voltage is increadibly stable and that both current and power increase halfway through the discharge.
Simon.